[PATCH] drm:vkms: Add NULL value after free function In function vkms_exit, after kfree(default_config), give specific NULL value to pointer default_config to avoid wild pointer.

[Hao Peng]

Signed-off-by: Hao Peng <penghaob at uniontech.com>
---
 drivers/gpu/drm/vkms/vkms_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
index 2173b82606f6..6c63201db5d0 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.c
+++ b/drivers/gpu/drm/vkms/vkms_drv.c
@@ -227,6 +227,7 @@ static void __exit vkms_exit(void)
 		vkms_destroy(default_config);
 
 	kfree(default_config);
+	default_config = NULL;
 }
 
 module_init(vkms_init);
-- 
2.20.1