Commit 33e1afc3 authored by Alexey Khoroshilov's avatar Alexey Khoroshilov Committed by Rusty Russell

virtio: console: fix error handling in init() function

If register_virtio_driver() fails, virtio-ports class is not destroyed.
The patch adds error handling of register_virtio_driver().

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: default avatarAlexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: default avatarAmit Shah <amit.shah@redhat.com>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 5b8fa822
...@@ -2099,7 +2099,17 @@ static int __init init(void) ...@@ -2099,7 +2099,17 @@ static int __init init(void)
INIT_LIST_HEAD(&pdrvdata.consoles); INIT_LIST_HEAD(&pdrvdata.consoles);
INIT_LIST_HEAD(&pdrvdata.portdevs); INIT_LIST_HEAD(&pdrvdata.portdevs);
return register_virtio_driver(&virtio_console); err = register_virtio_driver(&virtio_console);
if (err < 0) {
pr_err("Error %d registering virtio driver\n", err);
goto free;
}
return 0;
free:
if (pdrvdata.debugfs_dir)
debugfs_remove_recursive(pdrvdata.debugfs_dir);
class_destroy(pdrvdata.class);
return err;
} }
static void __exit fini(void) static void __exit fini(void)
......
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