From b0a4cb46062683d874ad2b2233cad0d0ba8f6f33 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sat, 14 Jul 2012 13:31:03 +1000 Subject: [PATCH] drm: set drm_class to NULL after removing it. We need to set this to NULL to stop later users from using it after free. Reported-by: Fengguang Wu Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_sysfs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index de8c636..45ac8d6 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -134,6 +134,7 @@ void drm_sysfs_destroy(void) return; class_remove_file(drm_class, &class_attr_version.attr); class_destroy(drm_class); + drm_class = NULL; } /** -- 1.7.10.4