On 2017-08-03 20:40, Boris Brezillon wrote:
On Wed, 2 Aug 2017 18:03:05 +0530
Abhishek Sahu <absahu@xxxxxxxxxxxxxx> wrote:
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>
Acked-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx>
Shall this patch be included for next RC since the MTD block
write is broken in 4.13 and without this, all the writes to
MTD block device will return failure.
---
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_IOERR;
+ return BLK_STS_OK;
default:
return BLK_STS_IOERR;
}
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