Btrfs: check return value of btrfs_alloc_path()
Adding the check on the return value of btrfs_alloc_path() to several places.
And, some of callers are modified by this change.
Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 02c97ad..c62f02f 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -151,7 +151,7 @@
ret = PTR_ERR(dir_item);
if (ret == -EEXIST)
goto second_insert;
- goto out;
+ goto out_free;
}
leaf = path->nodes[0];
@@ -170,7 +170,7 @@
/* FIXME, use some real flag for selecting the extra index */
if (root == root->fs_info->tree_root) {
ret = 0;
- goto out;
+ goto out_free;
}
btrfs_release_path(root, path);
@@ -180,7 +180,7 @@
name, name_len);
if (IS_ERR(dir_item)) {
ret2 = PTR_ERR(dir_item);
- goto out;
+ goto out_free;
}
leaf = path->nodes[0];
btrfs_cpu_key_to_disk(&disk_key, location);
@@ -192,7 +192,9 @@
name_ptr = (unsigned long)(dir_item + 1);
write_extent_buffer(leaf, name, name_ptr, name_len);
btrfs_mark_buffer_dirty(leaf);
-out:
+
+out_free:
+
btrfs_free_path(path);
if (ret)
return ret;