NVMe: Zero the command before we send it

Make sure there's no left-over bits set from previous commands that used
this slot.

Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index 1e57737b1760..25ca7af96469 100644
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -322,6 +322,7 @@ static int nvme_submit_bio_queue(struct nvme_queue *nvmeq, struct nvme_ns *ns,
         spin_lock_irqsave(&nvmeq->q_lock, flags);
         cmnd = &nvmeq->sq_cmds[nvmeq->sq_tail];
 
+        memset(cmnd, 0, sizeof(*cmnd));
         if (bio_data_dir(bio)) {
                 cmnd->rw.opcode = nvme_cmd_write;
                 dma_dir = DMA_TO_DEVICE;