mtd: error return -EIO instead of EIO

Return a negative error value instead of a positive

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
diff --git a/drivers/mtd/maps/vmu-flash.c b/drivers/mtd/maps/vmu-flash.c
index 1008462..82afad0 100644
--- a/drivers/mtd/maps/vmu-flash.c
+++ b/drivers/mtd/maps/vmu-flash.c
@@ -620,7 +620,7 @@
 
 	card = kmalloc(sizeof(struct memcard), GFP_KERNEL);
 	if (!card) {
-		error = ENOMEM;
+		error = -ENOMEM;
 		goto fail_nomem;
 	}