nvmet: fix byte swap in nvmet_parse_io_cmd

We need to do arithmetics after byte swapping, not before.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c
index e37acd77b5fe90f717628116b328f91198c3e3f5..6b0baa9caab9fdf524944b0be6e8d011d05c552b 100644 (file)
--- a/drivers/nvme/target/io-cmd.c
+++ b/drivers/nvme/target/io-cmd.c
@@ -230,7 +230,7 @@ int nvmet_parse_io_cmd(struct nvmet_req *req)
                return 0;
        case nvme_cmd_dsm:
                req->execute = nvmet_execute_dsm;
-               req->data_len = le32_to_cpu(cmd->dsm.nr + 1) *
+               req->data_len = (le32_to_cpu(cmd->dsm.nr) + 1) *
                        sizeof(struct nvme_dsm_range);
                return 0;
        case nvme_cmd_write_zeroes: