msix_vector_use() returns -EINVAL on error. Assert it won't.
Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
---
Notes taken while reviewing:
https://www.mail-archive.com/qemu-block@nongnu.org/msg66831.html
Based-on: <20200514044611.734782-1-...@irrelevant.dk>
---
hw/block/nvme.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 0cb54d902d..5fee563e99 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -613,6 +613,10 @@ static uint16_t nvme_del_cq(NvmeCtrl *n, NvmeCmd *cmd)
static void nvme_init_cq(NvmeCQueue *cq, NvmeCtrl *n, uint64_t dma_addr,
uint16_t cqid, uint16_t vector, uint16_t size, uint16_t irq_enabled)
{
+ int ret;
+
+ ret = msix_vector_use(&n->parent_obj, vector);
+ assert(ret == 0);
cq->ctrl = n;
cq->cqid = cqid;
cq->size = size;
@@ -623,7 +627,6 @@ static void nvme_init_cq(NvmeCQueue *cq, NvmeCtrl *n,
uint64_t dma_addr,
cq->head = cq->tail = 0;
QTAILQ_INIT(&cq->req_list);
QTAILQ_INIT(&cq->sq_list);
- msix_vector_use(&n->parent_obj, cq->vector);
n->cq[cqid] = cq;
cq->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, nvme_post_cqes, cq);
}
--
2.21.3
