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authorPhilippe Mathieu-Daudé <philmd@redhat.com>2020-10-29 10:32:52 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2020-11-03 19:06:21 +0000
commitdfa9c6c65666d431b20f6ae3f18ee1e729f80f19 (patch)
treea9eb39bdd81408f5dad2ab1122d3997e7bce0d6d /block/nvme.c
parent7a5f00dde39c0120b1653f189de9bbd551a6b1d8 (diff)
block/nvme: Make nvme_init_queue() return boolean indicating error
Just for consistency, following the example documented since commit e3fe3988d7 ("error: Document Error API usage rules"), return a boolean value indicating an error is set or not. Directly pass errp as the local_err is not requested in our case. This simplifies a bit nvme_create_queue_pair(). Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20201029093306.1063879-12-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com>
Diffstat (limited to 'block/nvme.c')
-rw-r--r--block/nvme.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/block/nvme.c b/block/nvme.c
index 9833501245..6eaba4e703 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -160,7 +160,8 @@ static QemuOptsList runtime_opts = {
},
};
-static void nvme_init_queue(BDRVNVMeState *s, NVMeQueue *q,
+/* Returns true on success, false on failure. */
+static bool nvme_init_queue(BDRVNVMeState *s, NVMeQueue *q,
unsigned nentries, size_t entry_bytes, Error **errp)
{
size_t bytes;
@@ -171,13 +172,15 @@ static void nvme_init_queue(BDRVNVMeState *s, NVMeQueue *q,
q->queue = qemu_try_memalign(s->page_size, bytes);
if (!q->queue) {
error_setg(errp, "Cannot allocate queue");
- return;
+ return false;
}
memset(q->queue, 0, bytes);
r = qemu_vfio_dma_map(s->vfio, q->queue, bytes, false, &q->iova);
if (r) {
error_setg(errp, "Cannot map queue");
+ return false;
}
+ return true;
}
static void nvme_free_queue_pair(NVMeQueuePair *q)
@@ -210,7 +213,6 @@ static NVMeQueuePair *nvme_create_queue_pair(BDRVNVMeState *s,
Error **errp)
{
int i, r;
- Error *local_err = NULL;
NVMeQueuePair *q;
uint64_t prp_list_iova;
@@ -247,16 +249,12 @@ static NVMeQueuePair *nvme_create_queue_pair(BDRVNVMeState *s,
req->prp_list_iova = prp_list_iova + i * s->page_size;
}
- nvme_init_queue(s, &q->sq, size, NVME_SQ_ENTRY_BYTES, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ if (!nvme_init_queue(s, &q->sq, size, NVME_SQ_ENTRY_BYTES, errp)) {
goto fail;
}
q->sq.doorbell = &s->doorbells[idx * s->doorbell_scale].sq_tail;
- nvme_init_queue(s, &q->cq, size, NVME_CQ_ENTRY_BYTES, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ if (!nvme_init_queue(s, &q->cq, size, NVME_CQ_ENTRY_BYTES, errp)) {
goto fail;
}
q->cq.doorbell = &s->doorbells[idx * s->doorbell_scale].cq_head;