btrfs: add check for ERR_PTR()

Commit Message

Dan Carpenter April 21, 2010, 10:32 a.m. UTC

None

Patch

diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 6ef7b26..c6d84ce 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -60,7 +60,8 @@  static struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
 		size = __btrfs_getxattr(inode, name, value, size);
 		if (size > 0) {
 			acl = posix_acl_from_xattr(value, size);
-			set_cached_acl(inode, type, acl);
+			if (!IS_ERR(acl))
+				set_cached_acl(inode, type, acl);
 		}
 		kfree(value);
 	} else if (size == -ENOENT || size == -ENODATA || size == 0) {