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| author | Eric Sandeen <sandeen@sandeen.net> | 2014-10-02 09:23:49 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2014-10-02 09:23:49 +1000 |
| commit | 6ee49a20c13b4b4e79a3bba406df8106cff284a1 (patch) | |
| tree | 07fd39c605fbfd6bb17fe348730d664b11c18fd2 /fs/xfs | |
| parent | ce57bcf6b81caf1e9f780e98e8d23d3555746d74 (diff) | |
| download | linux-6ee49a20c13b4b4e79a3bba406df8106cff284a1.tar.gz linux-6ee49a20c13b4b4e79a3bba406df8106cff284a1.tar.bz2 linux-6ee49a20c13b4b4e79a3bba406df8106cff284a1.zip | |
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>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_da_btree.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c index 2c42ae28d027..fd827530afec 100644 --- a/fs/xfs/libxfs/xfs_da_btree.c +++ b/fs/xfs/libxfs/xfs_da_btree.c @@ -2563,7 +2563,8 @@ xfs_da_get_buf( mapp, nmap, 0); error = bp ? bp->b_error : -EIO; if (error) { - xfs_trans_brelse(trans, bp); + if (bp) + xfs_trans_brelse(trans, bp); goto out_free; } |