Johannes Weiner 96fe2ab830 HID: fix waitqueue usage in hiddev ... DECLARE_WAITQUEUE doesn't initialize the wait descriptor's task_list to 'empty' but to zero. prepare_to_wait() will not enqueue the descriptor to the waitqueue and finish_wait() will do list_del_init() on a list head that contains NULL pointers, which oopses. This was introduced by 079034073 "HID: hiddev cleanup -- handle all error conditions properly". The prior code used an unconditional add_to_waitqueue() which didn't care about the wait descriptor's list head and enqueued the thing unconditionally. The new code uses prepare_to_wait() which DOES check the prior list state, so use DEFINE_WAIT instead. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Oliver Neukum <oliver@neukum.name> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>		2009-03-10 22:44:01 +01:00
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hid-core.c	USB: change interface to usb_lock_device_for_reset()	2009-01-07 09:59:52 -08:00
hid-pidff.c	HID: fix a lockup regression when using force feedback on a PID device	2008-10-14 23:51:02 +02:00
hid-quirks.c	HID: add proper support for pensketch 12x9 tablet	2009-01-04 01:01:43 +01:00
hiddev.c	HID: fix waitqueue usage in hiddev	2009-03-10 22:44:01 +01:00
Kconfig	HID: make boot protocol drivers depend on EMBEDDED	2009-01-04 01:00:53 +01:00
Makefile	HID: remove hid-ff	2008-10-14 23:51:01 +02:00
usbhid.h	HID: move usbhid flags to usbhid.h	2009-01-04 01:00:51 +01:00
usbkbd.c	HID: remove warn() macro from usb hid drivers	2008-10-14 23:51:03 +02:00
usbmouse.c	HID: remove info() macro from usb HID drivers	2008-10-14 23:51:03 +02:00