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nvme: fix error-handling for io_uring nvme-passthrough

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Driver may return an error before submitting the command to the device.
Ensure that such error is propagated up.

Fixes: 456cba386e ("nvme: wire-up uring-cmd support for io-passthru on char-device.")
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
This commit is contained in:
Anuj Gupta 2023-10-19 00:54:30 +05:30 • committed by Keith Busch
parent 983a338b96
commit 1147dd0503
1 changed files with 5 additions and 2 deletions
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7
drivers/nvme/host/ioctl.c
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@ -510,10 +510,13 @@ static enum rq_end_io_ret nvme_uring_cmd_end_io(struct request *req,
struct nvme_uring_cmd_pdu *pdu = nvme_uring_cmd_pdu(ioucmd);
req->bio = pdu->bio;
if (nvme_req(req)->flags & NVME_REQ_CANCELLED)
if (nvme_req(req)->flags & NVME_REQ_CANCELLED) {
pdu->nvme_status = -EINTR;
else
} else {
pdu->nvme_status = nvme_req(req)->status;
if (!pdu->nvme_status)
pdu->nvme_status = blk_status_to_errno(err);
}
pdu->u.result = le64_to_cpu(nvme_req(req)->result.u64);
/*