From: Ming Lei Date: Thu, 20 Apr 2023 09:11:04 +0000 (+0800) Subject: ublk: don't return 0 in case of any failure X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7c75661c42a06fe35e1774373194f646b5a9e5c9;p=linux.git ublk: don't return 0 in case of any failure Commit 2d786e66c966 ("block: ublk: switch to ioctl command encoding") starts to reset local variable of 'ret' as zero, then if any failure happens when handling the three IO commands, 0 can be returned to ublk server. Fix it by returning -EINVAL in case of command handling failure. Cc: Christoph Hellwig Fixes: 2d786e66c966 ("block: ublk: switch to ioctl command encoding") Signed-off-by: Ming Lei Link: https://lore.kernel.org/r/20230420091104.1092972-1-ming.lei@redhat.com Signed-off-by: Jens Axboe --- diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 5da5876a44434..253008b2091d6 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -1315,6 +1315,7 @@ static int ublk_ch_uring_cmd(struct io_uring_cmd *cmd, unsigned int issue_flags) if (ret) goto out; + ret = -EINVAL; switch (_IOC_NR(cmd_op)) { case UBLK_IO_FETCH_REQ: /* UBLK_IO_FETCH_REQ is only allowed before queue is setup */