Btrfs: handle ERR_PTR from posix_acl_from_xattr()
Dan Carpenter [Sat, 29 May 2010 09:48:35 +0000 (09:48 +0000)]
posix_acl_from_xattr() returns both ERR_PTRs and null, but it's OK to
pass null values to set_cached_acl()

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

fs/btrfs/acl.c

index a372985..1606dc1 100644 (file)
@@ -60,6 +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);
+                       if (IS_ERR(acl))
+                               return acl;
                        set_cached_acl(inode, type, acl);
                }
                kfree(value);