[PATCH] mtd: blkdevs: Fix mtd block write failure

From: Abhishek Sahu
Date: Wed Aug 02 2017 - 08:33:32 EST

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@xxxxxxxxxxxxxx>
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 f336a9b..9ec8f03 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_OK;
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