From: Chris Mason <chris.mason@oracle.com>
Date: Mon, 22 Nov 2010 03:27:44 +0000 (-0500)
Subject: Btrfs: avoid NULL pointer deref in try_release_extent_buffer
X-Git-Tag: v2.6.37-rc4~6^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=45f49bce99d008d6864a20324548f35936ba46fb;p=pandora-kernel.git

Btrfs: avoid NULL pointer deref in try_release_extent_buffer

If we fail to find a pointer in the radix tree, don't try
to deref the NULL one we do have.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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