From: Zygo Blaxell <zygo.blaxell@xandros.com>
Date: Tue, 16 Jun 2009 22:33:57 +0000 (-0700)
Subject: lib/genalloc.c: remove unmatched write_lock() in gen_pool_destroy
X-Git-Tag: v2.6.31-rc1~299^2~53
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e8a2dea0ca91fe2cb7de7ea212124cfe8c82c35;p=pandora-kernel.git

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>
---

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