ps3vram: Fix error path (return -EIO) for short read/write

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Jim Paris <jim@jtan.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

drivers/block/ps3vram.c

@@ -585,6 +585,7 @@ static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
 
 		if (retlen != len) {
 			dev_err(&dev->core, "Short %s\n", op);
+			error = -EIO;
 			goto out;
 		}