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staging: rtl8192u: propagate errors in write_nic_byte_E 

Propagate errors from  kzalloc and usb_control_msg and change the
return type of write_nic_byte_E from void to int.

Signed-off-by: Salah Triki <salah.triki@acm.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Salah Triki 2016-05-04 04:42:46 +01:00 committed by Greg Kroah-Hartman
parent ba15f657ce
commit 6ae4e4b302
2 changed files with 7 additions and 4 deletions
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2
drivers/staging/rtl8192u/r8192U.h
View File

@ -1130,7 +1130,7 @@ int read_nic_byte_E(struct net_device *dev, int x, u8 *data);
int read_nic_dword(struct net_device *dev, int x, u32 *data);
int read_nic_word(struct net_device *dev, int x, u16 *data);
int write_nic_byte(struct net_device *dev, int x, u8 y);
void write_nic_byte_E(struct net_device *dev, int x, u8 y);
int write_nic_byte_E(struct net_device *dev, int x, u8 y);
void write_nic_word(struct net_device *dev, int x, u16 y);
void write_nic_dword(struct net_device *dev, int x, u32 y);
void force_pci_posting(struct net_device *dev);

9
drivers/staging/rtl8192u/r8192U_core.c
View File

@ -253,7 +253,7 @@ u32 read_cam(struct net_device *dev, u8 addr)
return data;
}
void write_nic_byte_E(struct net_device *dev, int indx, u8 data)
int write_nic_byte_E(struct net_device *dev, int indx, u8 data)
{
int status;
struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
@ -261,7 +261,7 @@ void write_nic_byte_E(struct net_device *dev, int indx, u8 data)
u8 *usbdata = kzalloc(sizeof(data), GFP_KERNEL);
if (!usbdata)
return;
return -ENOMEM;
*usbdata = data;
status = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
@ -269,9 +269,12 @@ void write_nic_byte_E(struct net_device *dev, int indx, u8 data)
indx | 0xfe00, 0, usbdata, 1, HZ / 2);
kfree(usbdata);
if (status < 0)
if (status < 0){
netdev_err(dev, "write_nic_byte_E TimeOut! status: %d\n",
status);
return status;
}
return 0;
}
int read_nic_byte_E(struct net_device *dev, int indx, u8 *data)