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[PATCH 3.10 47/80] Btrfs: add missing brelse when superblock checksum fails

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  [PATCH 3.10 47/80] Btrfs: add missing brelse when superblock checksum fails Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-03-02 03:30 +0100

#1347667 — [PATCH 3.10 47/80] Btrfs: add missing brelse when superblock checksum fails

3.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anand Jain <anand.jain@oracle.com>

commit b2acdddfad13c38a1e8b927d83c3cf321f63601a upstream.

Looks like oversight, call brelse() when checksum fails. Further down the
code, in the non error path, we do call brelse() and so we don't see
brelse() in the goto error paths.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/btrfs/disk-io.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2437,6 +2437,7 @@ int open_ctree(struct super_block *sb,
 		       "unsupported option features (%Lx).\n",
 		       (unsigned long long)features);
 		err = -EINVAL;
+		brelse(bh);
 		goto fail_alloc;
 	}
 

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