I identified the faulty commit (using a git bisect):
bd25f4dd6972755579d0ea50d1a5ace2e9b00d1a is the first bad commit
commit bd25f4dd6972755579d0ea50d1a5ace2e9b00d1a
Author: Arnd Bergmann <a...@arndb.de>
Date: Sun Jul 11 15:34:05 2010 +0200
HID: hiddev: use usb_find_interface, get rid of BKL
This removes the private hiddev_table in the usbhid
driver and changes it to use usb_find_interface
instead.
The advantage is that we can avoid the race between
usb_register_dev and usb_open and no longer need the
big kernel lock.
This doesn't introduce race condition -- the intf pointer could be
invalidated only in hiddev_disconnect() through usb_deregister_dev(),
but that will block on minor_rwsem and not actually remove the device
until usb_open().
Signed-off-by: Arnd Bergmann <a...@arndb.de>
Cc: Jiri Kosina <jkos...@suse.cz>
Cc: "Greg Kroah-Hartman" <gre...@suse.de>
Signed-off-by: Jiri Kosina <jkos...@suse.cz>
:040000 040000 4ae14b3ba486373d7a354874e9ad334858f094e3
8041ffda20ca3020a6b60d64235ae179f8186bf0 M drivers
Further details in the referenced upstream bug report.
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https://bugs.launchpad.net/bugs/746860
Title:
System sporadically freezes during suspend to RAM
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