From 9a51544774a57fcb94994a61860a17f9e63a8d7b Mon Sep 17 00:00:00 2001
From: Abhishek Sahu <absahu@codeaurora.org>
Date: Wed, 2 Aug 2017 18:03:05 +0530
Subject: [PATCH] mtd: blkdevs: Fix mtd block write failure
Git-commit: 9a51544774a57fcb94994a61860a17f9e63a8d7b
Patch-mainline: v4.13-rc5
References: fate#322738,fate#322919,fate#322950,fate#323773


All the MTD block write requests are failing with
following error messages

    mkfs.ext4  /dev/mtdblock0

    print_req_error: I/O error, dev mtdblock0, sector 0
    Buffer I/O error on dev mtdblock0, logical block 0,
    lost async page write

The control is going to default case after block write request
because of missing return.

Fixes: commit 2a842acab109 ("block: introduce new block status code type")
Signed-off-by: Abhishek Sahu <absahu@codeaurora.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Coly Li <colyli@suse.de>
---
 drivers/mtd/mtd_blkdevs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index f336a9b85576..9ec8f033ac5f 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -113,6 +113,7 @@ static blk_status_t do_blktrans_request(struct mtd_blktrans_ops *tr,
 		for (; nsect > 0; nsect--, block++, buf += tr->blksize)
 			if (tr->writesect(dev, block, buf))
 				return BLK_STS_IOERR;
+		return BLK_STS_OK;
 	default:
 		return BLK_STS_IOERR;
 	}
-- 
2.13.5