vfio-mdev: fix some error codes in the sample code

This is just sample code.  We forget to set the error codes in a couple
places.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/samples/vfio-mdev/mtty.c b/samples/vfio-mdev/mtty.c
index 919c10d..1fc57a5 100644 (file)
--- a/samples/vfio-mdev/mtty.c
+++ b/samples/vfio-mdev/mtty.c
@@ -1449,6 +1449,7 @@ static int __init mtty_dev_init(void)
 
        if (IS_ERR(mtty_dev.vd_class)) {
                pr_err("Error: failed to register mtty_dev class\n");
+               ret = PTR_ERR(mtty_dev.vd_class);
                goto failed1;
        }
 
@@ -1460,7 +1461,8 @@ static int __init mtty_dev_init(void)
        if (ret)
                goto failed2;
 
-       if (mdev_register_device(&mtty_dev.dev, &mdev_fops) != 0)
+       ret = mdev_register_device(&mtty_dev.dev, &mdev_fops);
+       if (ret)
                goto failed3;
 
        mutex_init(&mdev_list_lock);