From: Dom Cobley <popcornmix@xxxxxxxxx>
In case there is no matching KMS, the function vc4_match_add_driver
won't change the match pointer which is initialized with NULL.
Since component_master_add_with_match doesn't expected match
to be a NULL pointer, this results into a NPD.
Fixes: c8b75bca92cb ("drm/vc4: Add KMS support for Raspberry Pi.")
Signed-off-by: Dom Cobley <popcornmix@xxxxxxxxx>
Signed-off-by: Stefan Wahren <wahrenst@xxxxxxx>
---
drivers/gpu/drm/vc4/vc4_drv.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index c133e96b8aca..4f17840df9d3 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -439,6 +439,8 @@ static int vc4_platform_drm_probe(struct platform_device *pdev)
vc4_match_add_drivers(dev, &match,
component_drivers, ARRAY_SIZE(component_drivers));
+ if (!match)
+ return -ENODEV;
return component_master_add_with_match(dev, &vc4_drm_ops, match);
}
--
2.34.1
