[PATCH] drm/drv: propagate errors from drm_modeset_register_all()

[Dmitry Baryshkov]

In case the drm_modeset_register_all() function fails, its error code
will be ignored. Instead make the drm_dev_register() bail out in case of
such an error.

Fixes: 79190ea2658a ("drm: Add callbacks for late registering")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/drm_drv.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index c6eb8972451a..dc4a496795ee 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -938,8 +938,11 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags)
 			goto err_minors;
 	}
 
-	if (drm_core_check_feature(dev, DRIVER_MODESET))
-		drm_modeset_register_all(dev);
+	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+		ret = drm_modeset_register_all(dev);
+		if (ret)
+			goto err_unload;
+	}
 
 	DRM_INFO("Initialized %s %d.%d.%d %s for %s on minor %d\n",
 		 driver->name, driver->major, driver->minor,
@@ -949,6 +952,9 @@ int drm_dev_register(struct drm_device *dev, unsigned long flags)
 
 	goto out_unlock;
 
+err_unload:
+	if (dev->driver->unload)
+		dev->driver->unload(dev);
 err_minors:
 	remove_compat_control_link(dev);
 	drm_minor_unregister(dev, DRM_MINOR_ACCEL);
-- 
2.39.2