asix fixes
* usb_control_message() to/from stack (breaks on e.g. arm); some places did kmalloc() for buffer, some just worked from stack. Added kmalloc()/memcpy()/kfree() in asix_read_cmd()/asix_write_cmd(), removed that crap from callers. * Fixed a leak in ax88172_bind() - on success it forgot to kfree() the buffer. * Endianness bug in ax88178_bind() - we read a word from eeprom and work with it without converting to host-endian Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Al Viro
Jeff Garzik
parent
7fd71e58b0
commit
51bf2976b5
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@ -172,45 +172,76 @@ struct asix_data {
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};
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struct ax88172_int_data {
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u16 res1;
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__le16 res1;
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u8 link;
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u16 res2;
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__le16 res2;
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u8 status;
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u16 res3;
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__le16 res3;
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} __attribute__ ((packed));
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static int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
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u16 size, void *data)
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{
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void *buf;
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int err = -ENOMEM;
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devdbg(dev,"asix_read_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d",
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cmd, value, index, size);
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return usb_control_msg(
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buf = kmalloc(size, GFP_KERNEL);
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if (!buf)
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goto out;
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err = usb_control_msg(
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dev->udev,
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usb_rcvctrlpipe(dev->udev, 0),
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cmd,
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USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value,
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index,
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data,
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buf,
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size,
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USB_CTRL_GET_TIMEOUT);
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if (err >= 0 && err < size)
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err = -EINVAL;
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if (!err)
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memcpy(data, buf, size);
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kfree(buf);
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out:
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return err;
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}
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static int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
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u16 size, void *data)
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{
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void *buf = NULL;
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int err = -ENOMEM;
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devdbg(dev,"asix_write_cmd() cmd=0x%02x value=0x%04x index=0x%04x size=%d",
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cmd, value, index, size);
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return usb_control_msg(
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if (data) {
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buf = kmalloc(size, GFP_KERNEL);
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if (!buf)
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goto out;
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memcpy(buf, data, size);
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}
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err = usb_control_msg(
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dev->udev,
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usb_sndctrlpipe(dev->udev, 0),
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cmd,
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
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value,
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index,
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data,
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buf,
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size,
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USB_CTRL_SET_TIMEOUT);
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kfree(buf);
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out:
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return err;
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}
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static void asix_async_cmd_callback(struct urb *urb)
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@ -402,25 +433,19 @@ static inline int asix_set_hw_mii(struct usbnet *dev)
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static inline int asix_get_phy_addr(struct usbnet *dev)
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{
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int ret = 0;
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void *buf;
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u8 buf[2];
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int ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf);
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devdbg(dev, "asix_get_phy_addr()");
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buf = kmalloc(2, GFP_KERNEL);
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if (!buf)
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goto out1;
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if ((ret = asix_read_cmd(dev, AX_CMD_READ_PHY_ID,
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0, 0, 2, buf)) < 2) {
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if (ret < 0) {
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deverr(dev, "Error reading PHYID register: %02x", ret);
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goto out2;
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goto out;
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}
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devdbg(dev, "asix_get_phy_addr() returning 0x%04x", *((u16 *)buf));
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ret = *((u8 *)buf + 1);
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out2:
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kfree(buf);
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out1:
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devdbg(dev, "asix_get_phy_addr() returning 0x%04x", *((__le16 *)buf));
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ret = buf[1];
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out:
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return ret;
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}
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@ -437,22 +462,15 @@ static int asix_sw_reset(struct usbnet *dev, u8 flags)
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static u16 asix_read_rx_ctl(struct usbnet *dev)
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{
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u16 ret = 0;
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void *buf;
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__le16 v;
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int ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL, 0, 0, 2, &v);
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buf = kmalloc(2, GFP_KERNEL);
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if (!buf)
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goto out1;
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if ((ret = asix_read_cmd(dev, AX_CMD_READ_RX_CTL,
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0, 0, 2, buf)) < 2) {
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if (ret < 0) {
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deverr(dev, "Error reading RX_CTL register: %02x", ret);
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goto out2;
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goto out;
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}
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ret = le16_to_cpu(*((u16 *)buf));
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out2:
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kfree(buf);
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out1:
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ret = le16_to_cpu(v);
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out:
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return ret;
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}
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@ -471,22 +489,15 @@ static int asix_write_rx_ctl(struct usbnet *dev, u16 mode)
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static u16 asix_read_medium_status(struct usbnet *dev)
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{
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u16 ret = 0;
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void *buf;
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__le16 v;
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int ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS, 0, 0, 2, &v);
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buf = kmalloc(2, GFP_KERNEL);
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if (!buf)
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goto out1;
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if ((ret = asix_read_cmd(dev, AX_CMD_READ_MEDIUM_STATUS,
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0, 0, 2, buf)) < 2) {
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if (ret < 0) {
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deverr(dev, "Error reading Medium Status register: %02x", ret);
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goto out2;
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goto out;
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}
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ret = le16_to_cpu(*((u16 *)buf));
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out2:
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kfree(buf);
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out1:
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ret = le16_to_cpu(v);
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out:
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return ret;
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}
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@ -568,31 +579,30 @@ static void asix_set_multicast(struct net_device *net)
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static int asix_mdio_read(struct net_device *netdev, int phy_id, int loc)
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{
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struct usbnet *dev = netdev_priv(netdev);
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u16 res;
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__le16 res;
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mutex_lock(&dev->phy_mutex);
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asix_set_sw_mii(dev);
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asix_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id,
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(__u16)loc, 2, (u16 *)&res);
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(__u16)loc, 2, &res);
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asix_set_hw_mii(dev);
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mutex_unlock(&dev->phy_mutex);
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devdbg(dev, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x", phy_id, loc, le16_to_cpu(res & 0xffff));
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devdbg(dev, "asix_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x", phy_id, loc, le16_to_cpu(res));
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return le16_to_cpu(res & 0xffff);
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return le16_to_cpu(res);
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}
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static void
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asix_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
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{
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struct usbnet *dev = netdev_priv(netdev);
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u16 res = cpu_to_le16(val);
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__le16 res = cpu_to_le16(val);
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devdbg(dev, "asix_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x", phy_id, loc, val);
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mutex_lock(&dev->phy_mutex);
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asix_set_sw_mii(dev);
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asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id,
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(__u16)loc, 2, (u16 *)&res);
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asix_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, &res);
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asix_set_hw_mii(dev);
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mutex_unlock(&dev->phy_mutex);
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}
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@ -644,7 +654,6 @@ asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
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{
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struct usbnet *dev = netdev_priv(net);
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u8 opt = 0;
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u8 buf[1];
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if (wolinfo->wolopts & WAKE_PHY)
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opt |= AX_MONITOR_LINK;
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@ -654,7 +663,7 @@ asix_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
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opt |= AX_MONITOR_MODE;
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if (asix_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
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opt, 0, 0, &buf) < 0)
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opt, 0, 0, NULL) < 0)
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return -EINVAL;
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return 0;
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@ -672,7 +681,7 @@ static int asix_get_eeprom(struct net_device *net,
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struct ethtool_eeprom *eeprom, u8 *data)
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{
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struct usbnet *dev = netdev_priv(net);
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u16 *ebuf = (u16 *)data;
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__le16 *ebuf = (__le16 *)data;
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int i;
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/* Crude hack to ensure that we don't overwrite memory
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@ -801,7 +810,7 @@ static int ax88172_link_reset(struct usbnet *dev)
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static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
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{
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int ret = 0;
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void *buf;
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u8 buf[ETH_ALEN];
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int i;
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unsigned long gpio_bits = dev->driver_info->data;
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struct asix_data *data = (struct asix_data *)&dev->data;
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@ -810,30 +819,23 @@ static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
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usbnet_get_endpoints(dev,intf);
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buf = kmalloc(ETH_ALEN, GFP_KERNEL);
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if(!buf) {
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ret = -ENOMEM;
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goto out1;
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}
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/* Toggle the GPIOs in a manufacturer/model specific way */
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for (i = 2; i >= 0; i--) {
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if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_GPIOS,
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(gpio_bits >> (i * 8)) & 0xff, 0, 0,
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buf)) < 0)
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goto out2;
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NULL)) < 0)
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goto out;
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msleep(5);
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}
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if ((ret = asix_write_rx_ctl(dev, 0x80)) < 0)
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goto out2;
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goto out;
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/* Get the MAC address */
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memset(buf, 0, ETH_ALEN);
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if ((ret = asix_read_cmd(dev, AX88172_CMD_READ_NODE_ID,
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0, 0, 6, buf)) < 0) {
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0, 0, ETH_ALEN, buf)) < 0) {
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dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
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goto out2;
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goto out;
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}
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memcpy(dev->net->dev_addr, buf, ETH_ALEN);
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@ -855,9 +857,8 @@ static int ax88172_bind(struct usbnet *dev, struct usb_interface *intf)
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mii_nway_restart(&dev->mii);
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return 0;
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out2:
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kfree(buf);
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out1:
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out:
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return ret;
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}
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@ -900,66 +901,58 @@ static int ax88772_link_reset(struct usbnet *dev)
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static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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{
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int ret, embd_phy;
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void *buf;
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u16 rx_ctl;
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struct asix_data *data = (struct asix_data *)&dev->data;
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u8 buf[ETH_ALEN];
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u32 phyid;
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data->eeprom_len = AX88772_EEPROM_LEN;
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usbnet_get_endpoints(dev,intf);
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buf = kmalloc(6, GFP_KERNEL);
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if(!buf) {
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dbg ("Cannot allocate memory for buffer");
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ret = -ENOMEM;
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goto out1;
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}
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if ((ret = asix_write_gpio(dev,
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AX_GPIO_RSE | AX_GPIO_GPO_2 | AX_GPIO_GPO2EN, 5)) < 0)
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goto out2;
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goto out;
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/* 0x10 is the phy id of the embedded 10/100 ethernet phy */
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embd_phy = ((asix_get_phy_addr(dev) & 0x1f) == 0x10 ? 1 : 0);
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if ((ret = asix_write_cmd(dev, AX_CMD_SW_PHY_SELECT,
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embd_phy, 0, 0, buf)) < 0) {
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embd_phy, 0, 0, NULL)) < 0) {
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dbg("Select PHY #1 failed: %d", ret);
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goto out2;
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goto out;
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}
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if ((ret = asix_sw_reset(dev, AX_SWRESET_IPPD | AX_SWRESET_PRL)) < 0)
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goto out2;
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goto out;
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msleep(150);
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if ((ret = asix_sw_reset(dev, AX_SWRESET_CLEAR)) < 0)
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goto out2;
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goto out;
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msleep(150);
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if (embd_phy) {
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if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL)) < 0)
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goto out2;
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goto out;
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}
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else {
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if ((ret = asix_sw_reset(dev, AX_SWRESET_PRTE)) < 0)
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goto out2;
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goto out;
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}
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msleep(150);
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rx_ctl = asix_read_rx_ctl(dev);
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dbg("RX_CTL is 0x%04x after software reset", rx_ctl);
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if ((ret = asix_write_rx_ctl(dev, 0x0000)) < 0)
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goto out2;
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goto out;
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rx_ctl = asix_read_rx_ctl(dev);
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dbg("RX_CTL is 0x%04x setting to 0x0000", rx_ctl);
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/* Get the MAC address */
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memset(buf, 0, ETH_ALEN);
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if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
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0, 0, ETH_ALEN, buf)) < 0) {
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dbg("Failed to read MAC address: %d", ret);
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goto out2;
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goto out;
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}
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memcpy(dev->net->dev_addr, buf, ETH_ALEN);
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@ -976,12 +969,12 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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dbg("PHYID=0x%08x", phyid);
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if ((ret = asix_sw_reset(dev, AX_SWRESET_PRL)) < 0)
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goto out2;
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goto out;
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msleep(150);
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if ((ret = asix_sw_reset(dev, AX_SWRESET_IPRL | AX_SWRESET_PRL)) < 0)
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goto out2;
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goto out;
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msleep(150);
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@ -994,18 +987,18 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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mii_nway_restart(&dev->mii);
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if ((ret = asix_write_medium_mode(dev, AX88772_MEDIUM_DEFAULT)) < 0)
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goto out2;
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goto out;
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if ((ret = asix_write_cmd(dev, AX_CMD_WRITE_IPG0,
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AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,
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AX88772_IPG2_DEFAULT, 0, buf)) < 0) {
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AX88772_IPG2_DEFAULT, 0, NULL)) < 0) {
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dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
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goto out2;
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goto out;
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}
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/* Set RX_CTL to default values with 2k buffer, and enable cactus */
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if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
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goto out2;
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goto out;
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rx_ctl = asix_read_rx_ctl(dev);
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dbg("RX_CTL is 0x%04x after all initializations", rx_ctl);
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@ -1013,20 +1006,15 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
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rx_ctl = asix_read_medium_status(dev);
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dbg("Medium Status is 0x%04x after all initializations", rx_ctl);
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|
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kfree(buf);
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|
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/* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
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if (dev->driver_info->flags & FLAG_FRAMING_AX) {
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/* hard_mtu is still the default - the device does not support
|
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jumbo eth frames */
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dev->rx_urb_size = 2048;
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}
|
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|
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return 0;
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|
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out2:
|
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kfree(buf);
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out1:
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out:
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return ret;
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}
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|
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|
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@ -1195,23 +1183,16 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
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{
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struct asix_data *data = (struct asix_data *)&dev->data;
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int ret;
|
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void *buf;
|
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u16 eeprom;
|
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u8 buf[ETH_ALEN];
|
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__le16 eeprom;
|
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u8 status;
|
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int gpio0 = 0;
|
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u32 phyid;
|
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|
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usbnet_get_endpoints(dev,intf);
|
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|
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buf = kmalloc(6, GFP_KERNEL);
|
||||
if(!buf) {
|
||||
dbg ("Cannot allocate memory for buffer");
|
||||
ret = -ENOMEM;
|
||||
goto out1;
|
||||
}
|
||||
|
||||
eeprom = 0;
|
||||
asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &eeprom);
|
||||
dbg("GPIO Status: 0x%04x", eeprom);
|
||||
asix_read_cmd(dev, AX_CMD_READ_GPIOS, 0, 0, 1, &status);
|
||||
dbg("GPIO Status: 0x%04x", status);
|
||||
|
||||
asix_write_cmd(dev, AX_CMD_WRITE_ENABLE, 0, 0, 0, NULL);
|
||||
asix_read_cmd(dev, AX_CMD_READ_EEPROM, 0x0017, 0, 2, &eeprom);
|
||||
|
|
@ -1219,19 +1200,19 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
|
|||
|
||||
dbg("EEPROM index 0x17 is 0x%04x", eeprom);
|
||||
|
||||
if (eeprom == 0xffff) {
|
||||
if (eeprom == cpu_to_le16(0xffff)) {
|
||||
data->phymode = PHY_MODE_MARVELL;
|
||||
data->ledmode = 0;
|
||||
gpio0 = 1;
|
||||
} else {
|
||||
data->phymode = eeprom & 7;
|
||||
data->ledmode = eeprom >> 8;
|
||||
gpio0 = (eeprom & 0x80) ? 0 : 1;
|
||||
data->phymode = le16_to_cpu(eeprom) & 7;
|
||||
data->ledmode = le16_to_cpu(eeprom) >> 8;
|
||||
gpio0 = (le16_to_cpu(eeprom) & 0x80) ? 0 : 1;
|
||||
}
|
||||
dbg("GPIO0: %d, PhyMode: %d", gpio0, data->phymode);
|
||||
|
||||
asix_write_gpio(dev, AX_GPIO_RSE | AX_GPIO_GPO_1 | AX_GPIO_GPO1EN, 40);
|
||||
if ((eeprom >> 8) != 1) {
|
||||
if ((le16_to_cpu(eeprom) >> 8) != 1) {
|
||||
asix_write_gpio(dev, 0x003c, 30);
|
||||
asix_write_gpio(dev, 0x001c, 300);
|
||||
asix_write_gpio(dev, 0x003c, 30);
|
||||
|
|
@ -1250,11 +1231,10 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
|
|||
asix_write_rx_ctl(dev, 0);
|
||||
|
||||
/* Get the MAC address */
|
||||
memset(buf, 0, ETH_ALEN);
|
||||
if ((ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
|
||||
0, 0, ETH_ALEN, buf)) < 0) {
|
||||
dbg("Failed to read MAC address: %d", ret);
|
||||
goto out2;
|
||||
goto out;
|
||||
}
|
||||
memcpy(dev->net->dev_addr, buf, ETH_ALEN);
|
||||
|
||||
|
|
@ -1289,12 +1269,10 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
|
|||
mii_nway_restart(&dev->mii);
|
||||
|
||||
if ((ret = asix_write_medium_mode(dev, AX88178_MEDIUM_DEFAULT)) < 0)
|
||||
goto out2;
|
||||
goto out;
|
||||
|
||||
if ((ret = asix_write_rx_ctl(dev, AX_DEFAULT_RX_CTL)) < 0)
|
||||
goto out2;
|
||||
|
||||
kfree(buf);
|
||||
goto out;
|
||||
|
||||
/* Asix framing packs multiple eth frames into a 2K usb bulk transfer */
|
||||
if (dev->driver_info->flags & FLAG_FRAMING_AX) {
|
||||
|
|
@ -1302,12 +1280,9 @@ static int ax88178_bind(struct usbnet *dev, struct usb_interface *intf)
|
|||
jumbo eth frames */
|
||||
dev->rx_urb_size = 2048;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
out2:
|
||||
kfree(buf);
|
||||
out1:
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue