drm: drm_minor_register(): Clean up debugfs on failure

[ Upstream commit a67834f8bfa1e2f48bb27d07b9a552ba7c3af82a ]

Call drm_debugfs_cleanup() in case drm_debugfs_init() fails to
cover for failure in the drm_driver.debugfs_init callback.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126225621.12314-3-noralf@tronnes.org
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 362b8cd..80a903b 100644 (file)
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -218,7 +218,7 @@ static int drm_minor_register(struct drm_device *dev, unsigned int type)
        ret = drm_debugfs_init(minor, minor->index, drm_debugfs_root);
        if (ret) {
                DRM_ERROR("DRM: Failed to initialize /sys/kernel/debug/dri.\n");
-               return ret;
+               goto err_debugfs;
        }
 
        ret = device_add(minor->kdev);