drm/udl: Use unlocked gem unreferencing

commit 72b9ff0612ad8fc969b910cd00ac16b57a1a9ba4 upstream.

For drm_gem_object_unreference callers are required to hold
dev->struct_mutex, which these paths don't. Enforcing this requirement
has become a bit more strict with

commit ef4c6270bf2867e2f8032e9614d1a8cfc6c71663
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Oct 15 09:36:25 2015 +0200

    drm/gem: Check locking in drm_gem_object_unreference

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/udl/udl_fb.c b/drivers/gpu/drm/udl/udl_fb.c
index 62c7b1dafaa4ba6f4c573fd6d631b86b3b83ce45..73e41a8613da338d0151a27efff9c73390645930 100644 (file)
--- a/drivers/gpu/drm/udl/udl_fb.c
+++ b/drivers/gpu/drm/udl/udl_fb.c
@@ -539,7 +539,7 @@ static int udlfb_create(struct drm_fb_helper *helper,
 out_destroy_fbi:
        drm_fb_helper_release_fbi(helper);
 out_gfree:
-       drm_gem_object_unreference(&ufbdev->ufb.obj->base);
+       drm_gem_object_unreference_unlocked(&ufbdev->ufb.obj->base);
 out:
        return ret;
 }

diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
index 2a0a784ab6eec37c34143f250fae9851f5d3ea94..d7528e0d844244bfc1de19ed2f84cd42a3aea836 100644 (file)
--- a/drivers/gpu/drm/udl/udl_gem.c
+++ b/drivers/gpu/drm/udl/udl_gem.c
@@ -52,7 +52,7 @@ udl_gem_create(struct drm_file *file,
                return ret;
        }
 
-       drm_gem_object_unreference(&obj->base);
+       drm_gem_object_unreference_unlocked(&obj->base);
        *handle_p = handle;
        return 0;
 }