| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 025/148] btrfs: fix missing error return in btrfs_drop_snapshot | Date | Tue, 12 Dec 2017 13:43:55 +0100 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Jeff Mahoney <jeffm@suse.com>
commit e19182c0fff451e3744c1107d98f072e7ca377a0 upstream.
If btrfs_del_root fails in btrfs_drop_snapshot, we'll pick up the error but then return 0 anyway due to mixing err and ret.
Fixes: 79787eaab4612 ("btrfs: replace many BUG_ONs with proper error handling") Signed-off-by: Jeff Mahoney <jeffm@suse.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/extent-tree.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -9362,6 +9362,7 @@ int btrfs_drop_snapshot(struct btrfs_roo ret = btrfs_del_root(trans, tree_root, &root->root_key); if (ret) { btrfs_abort_transaction(trans, ret); + err = ret; goto out_end_trans; }
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