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acpi: bus: check once more for an empty list after locking it
authorChuck Ebbert <cebbert@redhat.com>
Tue, 15 Apr 2008 21:34:47 +0000 (14:34 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 16 Apr 2008 02:35:41 +0000 (19:35 -0700)
commitf0a37e008750ead1751b7d5e89d220a260a46147
treedb808d329fc56dee2c518a3964f94e25af9941d3tree | snapshot
parentd1e7780638a9192f15caf590e0081bf915fdef71commit | diff
acpi: bus: check once more for an empty list after locking it

List could have become empty after the unlocked check that was made earlier,
so check again inside the lock.

Should fix https://bugzilla.redhat.com/show_bug.cgi?id=427765

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Cc: <stable@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/acpi/bus.c diff | blob | history
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