vduse: missing error code in vduse_init()

This should return -ENOMEM if alloc_workqueue() fails.  Currently it
returns success.

Fixes: b66219796563 ("vduse: Introduce VDUSE - vDPA Device in Userspace")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210907073223.GA18254@kili
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>

diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c
index 29a38ec..e36287f 100644 (file)
--- a/drivers/vdpa/vdpa_user/vduse_dev.c
+++ b/drivers/vdpa/vdpa_user/vduse_dev.c
@@ -1593,8 +1593,10 @@ static int vduse_init(void)
 
        vduse_irq_wq = alloc_workqueue("vduse-irq",
                                WQ_HIGHPRI | WQ_SYSFS | WQ_UNBOUND, 0);
-       if (!vduse_irq_wq)
+       if (!vduse_irq_wq) {
+               ret = -ENOMEM;
                goto err_wq;
+       }
 
        ret = vduse_domain_init();
        if (ret)