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authorLinus Torvalds <torvalds@linux-foundation.org>2009-11-11 13:32:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-11-11 13:32:29 -0800
commit404291ac9e72d118fcadeb939a69b2caa0a0e9ca (patch)
treee633e9d3f33b4a72ac3aea94a5868dda2828375d /Documentation/fb/vesafb.txt
parentfd801452a30927ec0dff84e541191e611c1afd0c (diff)
btusb bluetooth driver: wait for 'waker' work too before closing
Rafael debugged a resume-time hang (with oopses in workqueue handling) on his laptop that was due to the 'waker' workqueue entry being disconnected and then released without the workqueue entry having been synchronized. Several people were involved, with Oleg Nesterov doing a debugging patch showing what workqueue entry was corrupt etc. This was a regression introduced by commit 7bee549e19 ("Bluetooth: Add USB autosuspend support to btusb driver") as Rafael points out (not actually bisected, but it became clear once the bug was found). Tested-and-reported-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Oliver Neukum <oliver@neukum.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Tejun Heo <tj@kernel.org> Cc: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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