[PATCH 5.15 194/374] drm/drv: propagate errors from drm_modeset_register_all()

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5.15-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

[ Upstream commit 5f8dec200923a76dc57187965fd59c1136f5d085 ]

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")
Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20231202225552.1283638-1-dmitry.baryshkov@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 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 6f1791613757..23409f1916ee 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -894,8 +894,11 @@ 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,
@@ -905,6 +908,9 @@ 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_PRIMARY);
-- 
2.43.0







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