From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 1 Oct 2014 23:05:32 +0000 (+1000)
Subject: xfs: check xfs_buf_read_uncached returns correctly
X-Git-Tag: fixes-against-v3.18-rc2~104^2~1^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba3726742c1712c43c5a18245476f3fe9fe74773;p=pandora-kernel.git

xfs: check xfs_buf_read_uncached returns correctly

xfs_buf_read_uncached() has two failure modes. If can either return
NULL or bp->b_error != 0 depending on the type of failure, and not
all callers check for both. Fix it so that xfs_buf_read_uncached()
always returns the error status, and the buffer is returned as a
function parameter. The buffer will only be returned on success.

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

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