btrfs: Use PTR_ERR_OR_ZERO
PTR_RET is deprecated. Use PTR_ERR_OR_ZERO instead. While at it
also include missing err.h header.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Josef Bacik <jbacik@fb.com>
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 1389b69..38bb47e 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -16,6 +16,7 @@
* Boston, MA 021110-1307, USA.
*/
+#include <linux/err.h>
#include <linux/uuid.h>
#include "ctree.h"
#include "transaction.h"
@@ -271,7 +272,7 @@
key.offset++;
root = btrfs_read_fs_root(tree_root, &root_key);
- err = PTR_RET(root);
+ err = PTR_ERR_OR_ZERO(root);
if (err && err != -ENOENT) {
break;
} else if (err == -ENOENT) {