lib/genalloc.c: remove unmatched write_lock() in gen_pool_destroy
authorZygo Blaxell <zygo.blaxell@xandros.com>
Tue, 16 Jun 2009 22:33:57 +0000 (15:33 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 17 Jun 2009 02:47:53 +0000 (19:47 -0700)
commit8e8a2dea0ca91fe2cb7de7ea212124cfe8c82c35
tree96d07171a5c95e87c69fc18d4d0e582f90095d4e
parent69050eee8e08a6234f29fe71a56f8c7c7d4d7186
lib/genalloc.c: remove unmatched write_lock() in gen_pool_destroy

There is a call to write_lock() in gen_pool_destroy which is not balanced
by any corresponding write_unlock().  This causes problems with preemption
because the preemption-disable counter is incremented in the write_lock()
call, but never decremented by any call to write_unlock().  This bug is
gen_pool_destroy, and one of them is non-x86 arch-specific code.

Signed-off-by: Zygo Blaxell <zygo.blaxell@xandros.com>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: Steve Wise <swise@opengridcomputing.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib/genalloc.c