[PATCH] drm: Fix use-after-free in the shadow-attache exit code

[Daniel Vetter]

This regression has been introduced in

commit b3f2333de8e81b089262b26d52272911523e605f
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Wed Dec 11 11:34:31 2013 +0100

    drm: restrict the device list for shadow attached drivers

Reported-by: Dave Jones <davej at redhat.com>
Cc: Dave Jones <davej at redhat.com>
Cc: Dave Airlie <airlied at redhat.com>
Cc: David Herrmann <dh.herrmann at gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/gpu/drm/drm_pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index 5736aaa7e86c..f7af69bcf3f4 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -468,8 +468,8 @@ void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver)
 	} else {
 		list_for_each_entry_safe(dev, tmp, &driver->legacy_dev_list,
 					 legacy_dev_list) {
-			drm_put_dev(dev);
 			list_del(&dev->legacy_dev_list);
+			drm_put_dev(dev);
 		}
 	}
 	DRM_INFO("Module unloaded\n");
-- 
1.8.5.2