From: Eric Sandeen <sandeen@sandeen.net>
Date: Wed, 1 Oct 2014 23:23:49 +0000 (+1000)
Subject: xfs: don't send null bp to xfs_trans_brelse()
X-Git-Tag: fixes-against-v3.18-rc2~104^2^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ee49a20c13b4b4e79a3bba406df8106cff284a1;p=pandora-kernel.git

xfs: don't send null bp to xfs_trans_brelse()

In this case, if bp is NULL, error is set, and we send a
NULL bp to xfs_trans_brelse, which will try to dereference it.

Test whether we actually have a buffer before we try to
free it.

Coverity spotted this.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
---

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