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Btrfs: check the return value from set_anon_super
author
Chris Mason
<chris.mason@oracle.com>
Mon, 13 Jun 2011 15:28:50 +0000
(11:28 -0400)
committer
Chris Mason
<chris.mason@oracle.com>
Mon, 13 Jun 2011 15:28:50 +0000
(11:28 -0400)
Al Viro noticed we weren't checking for set_anon_super failures. This
adds the required checks.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/disk-io.c
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diff --git
a/fs/btrfs/disk-io.c
b/fs/btrfs/disk-io.c
index
9f68c68
..
20c111b
100644
(file)
--- a/
fs/btrfs/disk-io.c
+++ b/
fs/btrfs/disk-io.c
@@
-1312,7
+1312,9
@@
again:
spin_lock_init(&root->cache_lock);
init_waitqueue_head(&root->cache_wait);
- set_anon_super(&root->anon_super, NULL);
+ ret = set_anon_super(&root->anon_super, NULL);
+ if (ret)
+ goto fail;
if (btrfs_root_refs(&root->root_item) == 0) {
ret = -ENOENT;