linux-stable.git/drivers/staging, branch v3.0.22

staging: r8712u: Add new Sitecom UsB ID

2012-02-13T19:06:12+00:00

commit 1793bf1deddc8ce25dc41925d5dbe64536c841b6 upstream.

Add USB ID for SITECOM WLA-1000 V1 001 WLAN

Reported-and-tested-by: Roland Gruber 
Reported-and-tested-by: Dario Lucia 
Signed-off-by: Larry Finger 
Signed-off-by: Greg Kroah-Hartman

Staging: asus_oled: fix NULL-ptr crash on unloading

2012-02-13T19:06:12+00:00

commit 3589e74595a4332ebf77b5ed006f3c6686071ecd upstream.

Asus_oled triggers the following bug on module unloading:

 usbcore: deregistering interface driver asus-oled
 BUG: unable to handle kernel NULL pointer dereference at 0000000000000038
 IP: [] sysfs_delete_link+0x30/0x66

 Call Trace:
  [] device_remove_class_symlinks+0x6b/0x70
  [] device_del+0x9f/0x1ab
  [] device_unregister+0x11/0x1e
  [] asus_oled_disconnect+0x4f/0x9e [asus_oled]
  [] usb_unbind_interface+0x54/0x103
  [] __device_release_driver+0xa2/0xeb
  [] driver_detach+0x87/0xad
  [] bus_remove_driver+0x91/0xc1
  [] driver_unregister+0x66/0x6e
  [] usb_deregister+0xbb/0xc4
  [] asus_oled_exit+0x2f/0x31 [asus_oled]
  [] sys_delete_module+0x1b8/0x21b
  [] ? do_munmap+0x2ef/0x313
  [] system_call_fastpath+0x16/0x1b

This is due to an incorrect destruction sequence in asus_oled_exit().

Fix the order, fixes the bug. Tested on an Asus G50V laptop only.

Cc: Jakub Schmidtke 
Signed-off-by: Pekka Paalanen 
Signed-off-by: Greg Kroah-Hartman

Staging: asus_oled: fix image processing

2012-02-13T19:06:12+00:00

commit 635032cb397b396241372fa0ff36ae758e658b23 upstream.

Programming an image was broken, because odev->buf_offs was not advanced
for val == 0 in append_values(). This regression was introduced in:

 commit 1ff12a4aa354bed093a0240d5e6347b1e27601bc
 Author: Kevin A. Granade 
 Date:   Sat Sep 5 01:03:39 2009 -0500

     Staging: asus_oled: Cleaned up checkpatch issues.

Fix the image processing by special-casing val == 0.

I have tested this change on an Asus G50V laptop only.

Cc: Jakub Schmidtke 
Cc: Kevin A. Granade 
Signed-off-by: Pekka Paalanen 
Signed-off-by: Greg Kroah-Hartman

staging: r8712u: Add new USB ID

2011-12-21T20:57:44+00:00

commit c7caf4d4c56aee40b995f5858ccf1c814f3d2da2 upstream.

Add USB ID for Sitecom WLA-2000 v1.001 WLAN.

Reported-and-tested-by: Roland Gruber 
Signed-off-by: Larry Finger 
Signed-off-by: Greg Kroah-Hartman

Staging: comedi: fix signal handling in read and write

2011-12-09T16:52:40+00:00

commit 6a9ce6b654e491981f6ef7e214cbd4f63e033848 upstream.

After sleeping on a wait queue, signal_pending(current) should be
checked (not before sleeping).

Acked-by: Alessandro Rubini 
Signed-off-by: Federico Vaga 
Signed-off-by: Greg Kroah-Hartman

Staging: comedi: fix mmap_count

2011-12-09T16:52:40+00:00

commit df30b21cb0eed5ba8a8e0cdfeebc66ba8cde821d upstream.

In comedi_fops, mmap_count is decremented at comedi_vm_ops->close but
it is not incremented at comedi_vm_ops->open. This may result in a negative
counter.  The patch introduces the open method to keep the counter
consistent.

The bug was triggerd by this sample code:

        mmap(0, ...., comedi_fd);
        fork();
        exit(0);

Acked-by: Alessandro Rubini 
Signed-off-by: Federico Vaga 
Signed-off-by: Greg Kroah-Hartman

staging: comedi: fix oops for USB DAQ devices.

2011-12-09T16:52:40+00:00

commit 3ffab428f40849ed5f21bcfd7285bdef7902f9ca upstream.

This fixes kernel oops when an USB DAQ device is plugged out while it's
communicating with the userspace software.

Signed-off-by: Bernd Porr 
Signed-off-by: Greg Kroah-Hartman

staging: usbip: bugfix for deadlock

2011-12-09T16:52:39+00:00

commit 438957f8d4a84daa7fa5be6978ad5897a2e9e5e5 upstream.

Interrupts must be disabled prior to calling usb_hcd_unlink_urb_from_ep.
If interrupts are not disabled, it can potentially lead to a deadlock.
The deadlock is readily reproduceable on a slower (ARM based) device
such as the TI Pandaboard.

Signed-off-by: Bart Westgeest 
Signed-off-by: Greg Kroah-Hartman

Staging: hv: Add support for >2 TB LUN in storage driver.

2011-11-11T17:35:14+00:00

commit cf55f4a8b6243b42fb91c56d1421db0d36d60f96 upstream.

If a LUN larger than 2 TB is attached to a Linux VM on Hyper-V, we currently
report a maximum size of 2 TB. This patch resolves the issue in hv_storvsc.
Thanks to Robert Scheck  for reporting the issue.

Reported-by: Robert Scheck 
Signed-off-by: Mike Sterling 
Signed-off-by: K.Y. Srinivasan 
Signed-off-by: Haiyang Zhang 
Signed-off-by: Greg Kroah-Hartman

staging: quatech_usb2: Potential lost wakeup scenario in TIOCMIWAIT

2011-11-11T17:35:14+00:00

commit e8df1674d383d2ecc6efa8d7dba74c03aafdfdd7 upstream.

If the usermode app does an ioctl over this serial device  by
using TIOCMIWAIT, then the code will wait by setting the current
task state to TASK_INTERRUPTIBLE and then calling schedule().
This will be woken up by the qt2_process_modem_status on URB
completion when the port_extra->shadowMSR is set to the new
modem status.

However, this could result in a lost wakeup scenario due to a race
in the logic in the qt2_ioctl(TIOCMIWAIT) loop and the URB completion
for new modem status in qt2_process_modem_status.
Due to this, the usermode app's task will continue to sleep despite a
change in the modem status.

Signed-off-by: Kautuk Consul 
Signed-off-by: Greg Kroah-Hartman