UBI: fix missing brace control flow

commit 0e707ae ("UBI: do propagate positive error codes up") seems
to have produced an unintended change in the control flow here.

Completely untested, but it looks obvious.

Caught by Coverity, which didn't like the indentation. CID 1271184.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

drivers/mtd/ubi/eba.c

@@ -425,9 +425,10 @@ int ubi_eba_read_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum,
 					ubi_warn(ubi, "corrupted VID header at PEB %d, LEB %d:%d",
 						 pnum, vol_id, lnum);
 					err = -EBADMSG;
-				} else
+				} else {
 					err = -EINVAL;
 					ubi_ro_mode(ubi);
+				}
 			}
 			goto out_free;
 		} else if (err == UBI_IO_BITFLIPS)