[PULL,07/64] block/nvme: Use common error path in nvme_add_io_queue()

Commit Message

Kevin Wolf Sept. 7, 2020, 11:08 a.m. UTC

From: Philippe Mathieu-Daudé <[e-mail]>

Rearrange nvme_add_io_queue() by using a common error path.
This will be proven useful in few commits where we add IRQ
notification to the IO queues.

Reviewed-by: Stefan Hajnoczi <[e-mail]>
Reviewed-by: Stefano Garzarella <[e-mail]>
Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
Message-Id: <[e-mail]>
Signed-off-by: Kevin Wolf <[e-mail]>
---
 block/nvme.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

Patch

diff --git a/block/nvme.c b/block/nvme.c
index 91dba4ec5d..909a565184 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -649,8 +649,7 @@  static bool nvme_add_io_queue(BlockDriverState *bs, Error **errp)
     };
     if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) {
         error_setg(errp, "Failed to create CQ io queue [%d]", n);
-        nvme_free_queue_pair(q);
-        return false;
+        goto out_error;
     }
     cmd = (NvmeCmd) {
         .opcode = NVME_ADM_CMD_CREATE_SQ,
@@ -660,13 +659,15 @@  static bool nvme_add_io_queue(BlockDriverState *bs, Error **errp)
     };
     if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) {
         error_setg(errp, "Failed to create SQ io queue [%d]", n);
-        nvme_free_queue_pair(q);
-        return false;
+        goto out_error;
     }
     s->queues = g_renew(NVMeQueuePair *, s->queues, n + 1);
     s->queues[n] = q;
     s->nr_queues++;
     return true;
+out_error:
+    nvme_free_queue_pair(q);
+    return false;
 }
 
 static bool nvme_poll_cb(void *opaque)