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block/nvme: Use common error path in nvme_add_io_queue()

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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 <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200821195359.1285345-7-philmd@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-08-21 21:53:50 +02:00 committed by Kevin Wolf
parent bf6ce5ec6d
commit c8edbfb2cc
1 changed files with 5 additions and 4 deletions
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9
block/nvme.c
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@ -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)