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staging tree fixes for 3.5-rc4 

Here are a number of small fixes for the drivers/staging tree, as well as iio
 and pstore drivers (which came from the staging tree in the 3.5-rc1 merge).
 All of these are tiny, but resolve issues that people have been reporting.
 
 There's also a documentation update to reflect what the iio drivers really are
 doing, which is good to get straightened out.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree fixes from Greg Kroah-Hartman:
 "Here are a number of small fixes for the drivers/staging tree, as well
  as iio and pstore drivers (which came from the staging tree in the
  3.5-rc1 merge).  All of these are tiny, but resolve issues that people
  have been reporting.

  There's also a documentation update to reflect what the iio drivers
  really are doing, which is good to get straightened out.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'staging-3.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: r8712u: Add new USB IDs
  staging: gdm72xx: Release netlink socket properly
  iio: drop wrong reference from Kconfig
  pstore/inode: Make pstore_fill_super() static
  pstore/ram: Should zap persistent zone on unlink
  pstore/ram_core: Factor persistent_ram_zap() out of post_init()
  pstore/ram_core: Do not reset restored zone's position and size
  pstore/ram: Should update old dmesg buffer before reading
  staging:iio:ad7298: Fix linker error due to missing IIO kfifo buffer
  Revert "staging: usbip: bugfix for stack corruption on 64-bit architectures"
  staging: usbip: bugfix for stack corruption on 64-bit architectures
  staging/comedi: fix build for USB not enabled
  staging: omapdrm: fix crash when freeing bad fb
  staging:iio:ad7606: Re-add missing scale attribute
  iio: Fix potential use after free
  staging:iio: remove num_interrupt_lines from documentation
  iio: documentation: Add out_altvoltage and friends
This commit is contained in:
Linus Torvalds 2012-06-20 15:15:03 -07:00
parent fe80352460 3026b0e942
commit bc259adc9b
14 changed files with 82 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
Documentation/ABI/testing/sysfs-bus-iio
View File

@ -219,6 +219,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
@ -273,6 +274,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
What: /sys/.../iio:deviceX/in_voltageX_scale_available
What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
What: /sys/.../iio:deviceX/out_voltageX_scale_available
What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
What: /sys/.../iio:deviceX/in_capacitance_scale_available
KernelVersion: 2.635
Contact: linux-iio@vger.kernel.org
@ -298,14 +300,19 @@ Description:
gives the 3dB frequency of the filter in Hz.
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
Raw (unscaled, no bias etc.) output voltage for
channel Y. The number must always be specified and
unique if the output corresponds to a single channel.
While DAC like devices typically use out_voltage,
a continuous frequency generating device, such as
a DDS or PLL should use out_altvoltage.
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
@ -316,6 +323,8 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org
Description:
@ -330,6 +339,8 @@ Description:
What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org
Description:
@ -338,6 +349,8 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org
Description:
@ -346,6 +359,24 @@ Description:
normal operation. Y may be suppressed if all outputs are
controlled together.
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
Output frequency for channel Y in Hz. The number must always be
specified and unique if the output corresponds to a single
channel.
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
Phase in radians of one frequency/clock output Y
(out_altvoltageY) relative to another frequency/clock output
(out_altvoltageZ) of the device X. The number must always be
specified and unique if the output corresponds to a single
channel.
What: /sys/bus/iio/devices/iio:deviceX/events
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org

3
drivers/iio/Kconfig
View File

@ -8,8 +8,7 @@ menuconfig IIO
help
The industrial I/O subsystem provides a unified framework for
drivers for many different types of embedded sensors using a
number of different physical interfaces (i2c, spi, etc). See
Documentation/iio for more information.
number of different physical interfaces (i2c, spi, etc).
if IIO

16
drivers/iio/industrialio-core.c
View File

@ -661,7 +661,6 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev)
* New channel registration method - relies on the fact a group does
* not need to be initialized if it is name is NULL.
*/
INIT_LIST_HEAD(&indio_dev->channel_attr_list);
if (indio_dev->channels)
for (i = 0; i < indio_dev->num_channels; i++) {
ret = iio_device_add_channel_sysfs(indio_dev,
@ -725,12 +724,16 @@ static void iio_device_unregister_sysfs(struct iio_dev *indio_dev)
static void iio_dev_release(struct device *device)
{
struct iio_dev *indio_dev = dev_to_iio_dev(device);
cdev_del(&indio_dev->chrdev);
if (indio_dev->chrdev.dev)
cdev_del(&indio_dev->chrdev);
if (indio_dev->modes & INDIO_BUFFER_TRIGGERED)
iio_device_unregister_trigger_consumer(indio_dev);
iio_device_unregister_eventset(indio_dev);
iio_device_unregister_sysfs(indio_dev);
iio_device_unregister_debugfs(indio_dev);
ida_simple_remove(&iio_ida, indio_dev->id);
kfree(indio_dev);
}
static struct device_type iio_dev_type = {
@ -761,6 +764,7 @@ struct iio_dev *iio_device_alloc(int sizeof_priv)
dev_set_drvdata(&dev->dev, (void *)dev);
mutex_init(&dev->mlock);
mutex_init(&dev->info_exist_lock);
INIT_LIST_HEAD(&dev->channel_attr_list);
dev->id = ida_simple_get(&iio_ida, 0, 0, GFP_KERNEL);
if (dev->id < 0) {
@ -778,10 +782,8 @@ EXPORT_SYMBOL(iio_device_alloc);
void iio_device_free(struct iio_dev *dev)
{
if (dev) {
ida_simple_remove(&iio_ida, dev->id);
kfree(dev);
}
if (dev)
put_device(&dev->dev);
}
EXPORT_SYMBOL(iio_device_free);
@ -902,7 +904,7 @@ void iio_device_unregister(struct iio_dev *indio_dev)
mutex_lock(&indio_dev->info_exist_lock);
indio_dev->info = NULL;
mutex_unlock(&indio_dev->info_exist_lock);
device_unregister(&indio_dev->dev);
device_del(&indio_dev->dev);
}
EXPORT_SYMBOL(iio_device_unregister);
subsys_initcall(iio_init);

5
drivers/staging/comedi/drivers.c
View File

@ -30,6 +30,7 @@
#include <linux/pci.h>
#include <linux/usb.h>
#include <linux/errno.h>
#include <linux/kconfig.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/fcntl.h>
@ -981,6 +982,8 @@ void comedi_pci_driver_unregister(struct comedi_driver *comedi_driver,
}
EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister);
#if IS_ENABLED(CONFIG_USB)
static int comedi_old_usb_auto_config(struct usb_interface *intf,
struct comedi_driver *driver)
{
@ -1043,3 +1046,5 @@ void comedi_usb_driver_unregister(struct comedi_driver *comedi_driver,
comedi_driver_unregister(comedi_driver);
}
EXPORT_SYMBOL_GPL(comedi_usb_driver_unregister);
#endif

2
drivers/staging/gdm72xx/netlink_k.c
View File

@ -104,7 +104,7 @@ struct sock *netlink_init(int unit, void (*cb)(struct net_device *dev, u16 type,
void netlink_exit(struct sock *sock)
{
sock_release(sock->sk_socket);
netlink_kernel_release(sock);
}
int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)

2
drivers/staging/iio/Documentation/device.txt
View File

@ -29,8 +29,6 @@ Then fill in the following:
* info->driver_module:
Set to THIS_MODULE. Used to ensure correct ownership
of various resources allocate by the core.
* info->num_interrupt_lines:
Number of event triggering hardware lines the device has.
* info->event_attrs:
Attributes used to enable / disable hardware events.
* info->attrs:

1
drivers/staging/iio/adc/Kconfig
View File

@ -13,6 +13,7 @@ config AD7291
config AD7298
tristate "Analog Devices AD7298 ADC driver"
depends on SPI
select IIO_KFIFO_BUF if IIO_BUFFER
help
Say yes here to build support for Analog Devices AD7298
8 Channel ADC with temperature sensor.

3
drivers/staging/iio/adc/ad7606_core.c
View File

@ -235,7 +235,8 @@ static const struct attribute_group ad7606_attribute_group_range = {
.indexed = 1, \
.channel = num, \
.address = num, \
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT, \
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \
IIO_CHAN_INFO_SCALE_SHARED_BIT, \
.scan_index = num, \
.scan_type = IIO_ST('s', 16, 16, 0), \
}

10
drivers/staging/omapdrm/omap_fbdev.c
View File

@ -208,7 +208,8 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
*/
ret = omap_gem_get_paddr(fbdev->bo, &paddr, true);
if (ret) {
dev_err(dev->dev, "could not map (paddr)!\n");
dev_err(dev->dev,
"could not map (paddr)! Skipping framebuffer alloc\n");
ret = -ENOMEM;
goto fail;
}
@ -388,8 +389,11 @@ void omap_fbdev_free(struct drm_device *dev)
fbi = helper->fbdev;
unregister_framebuffer(fbi);
framebuffer_release(fbi);
/* only cleanup framebuffer if it is present */
if (fbi) {
unregister_framebuffer(fbi);
framebuffer_release(fbi);
}
drm_fb_helper_fini(helper);

2
drivers/staging/rtl8712/usb_intf.c
View File

@ -102,6 +102,8 @@ static struct usb_device_id rtl871x_usb_id_tbl[] = {
/* - */
{USB_DEVICE(0x20F4, 0x646B)},
{USB_DEVICE(0x083A, 0xC512)},
{USB_DEVICE(0x25D4, 0x4CA1)},
{USB_DEVICE(0x25D4, 0x4CAB)},
/* RTL8191SU */
/* Realtek */

2
fs/pstore/inode.c
View File

@ -258,7 +258,7 @@ fail:
return rc;
}
int pstore_fill_super(struct super_block *sb, void *data, int silent)
static int pstore_fill_super(struct super_block *sb, void *data, int silent)
{
struct inode *inode;

3
fs/pstore/ram.c
View File

@ -106,6 +106,8 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
time->tv_sec = 0;
time->tv_nsec = 0;
/* Update old/shadowed buffer. */
persistent_ram_save_old(prz);
size = persistent_ram_old_size(prz);
*buf = kmalloc(size, GFP_KERNEL);
if (*buf == NULL)
@ -184,6 +186,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id,
return -EINVAL;
persistent_ram_free_old(cxt->przs[id]);
persistent_ram_zap(cxt->przs[id]);
return 0;
}

27
fs/pstore/ram_core.c
View File

@ -250,23 +250,24 @@ static void notrace persistent_ram_update(struct persistent_ram_zone *prz,
persistent_ram_update_ecc(prz, start, count);
}
static void __init
persistent_ram_save_old(struct persistent_ram_zone *prz)
void persistent_ram_save_old(struct persistent_ram_zone *prz)
{
struct persistent_ram_buffer *buffer = prz->buffer;
size_t size = buffer_size(prz);
size_t start = buffer_start(prz);
char *dest;
persistent_ram_ecc_old(prz);
if (!size)
return;
dest = kmalloc(size, GFP_KERNEL);
if (dest == NULL) {
if (!prz->old_log) {
persistent_ram_ecc_old(prz);
prz->old_log = kmalloc(size, GFP_KERNEL);
}
if (!prz->old_log) {
pr_err("persistent_ram: failed to allocate buffer\n");
return;
}
prz->old_log = dest;
prz->old_log_size = size;
memcpy(prz->old_log, &buffer->data[start], size - start);
memcpy(prz->old_log + size - start, &buffer->data[0], start);
@ -319,6 +320,13 @@ void persistent_ram_free_old(struct persistent_ram_zone *prz)
prz->old_log_size = 0;
}
void persistent_ram_zap(struct persistent_ram_zone *prz)
{
atomic_set(&prz->buffer->start, 0);
atomic_set(&prz->buffer->size, 0);
persistent_ram_update_header_ecc(prz);
}
static void *persistent_ram_vmap(phys_addr_t start, size_t size)
{
struct page **pages;
@ -405,6 +413,7 @@ static int __init persistent_ram_post_init(struct persistent_ram_zone *prz, bool
" size %zu, start %zu\n",
buffer_size(prz), buffer_start(prz));
persistent_ram_save_old(prz);
return 0;
}
} else {
pr_info("persistent_ram: no valid data in buffer"
@ -412,8 +421,7 @@ static int __init persistent_ram_post_init(struct persistent_ram_zone *prz, bool
}
prz->buffer->sig = PERSISTENT_RAM_SIG;
atomic_set(&prz->buffer->start, 0);
atomic_set(&prz->buffer->size, 0);
persistent_ram_zap(prz);
return 0;
}
@ -448,7 +456,6 @@ struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start,
goto err;
persistent_ram_post_init(prz, ecc);
persistent_ram_update_header_ecc(prz);
return prz;
err:

2
include/linux/pstore_ram.h
View File

@ -69,12 +69,14 @@ struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start,
size_t size,
bool ecc);
void persistent_ram_free(struct persistent_ram_zone *prz);
void persistent_ram_zap(struct persistent_ram_zone *prz);
struct persistent_ram_zone *persistent_ram_init_ringbuffer(struct device *dev,
bool ecc);
int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
unsigned int count);
void persistent_ram_save_old(struct persistent_ram_zone *prz);
size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
void *persistent_ram_old(struct persistent_ram_zone *prz);
void persistent_ram_free_old(struct persistent_ram_zone *prz);