Commit 92c17d16476c ("drm/vc4: hvs: Ignore atomic_flush if we're disabled")
added a path which returned early without having called drm_dev_exit.

Ensure all paths call drm_dev_exit.

Fixes: 92c17d16476c ("drm/vc4: hvs: Ignore atomic_flush if we're disabled")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 drivers/gpu/drm/vc4/vc4_hvs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index 546ee11016b2..c5ebc317188a 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -603,7 +603,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
 	}
 
 	if (vc4_state->assigned_channel == VC4_HVS_CHANNEL_DISABLED)
-		return;
+		goto exit;
 
 	if (debug_dump_regs) {
 		DRM_INFO("CRTC %d HVS before:\n", drm_crtc_index(crtc));
@@ -686,6 +686,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
 		vc4_hvs_dump_state(hvs);
 	}
 
+exit:
 	drm_dev_exit(idx);
 }
 

-- 
2.34.1

On 08.10.2024 18:44, Dave Stevenson wrote:
> Commit 92c17d16476c ("drm/vc4: hvs: Ignore atomic_flush if we're disabled")
> added a path which returned early without having called drm_dev_exit.
>
> Ensure all paths call drm_dev_exit.
>
> Fixes: 92c17d16476c ("drm/vc4: hvs: Ignore atomic_flush if we're disabled")
> Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
> ---
>   drivers/gpu/drm/vc4/vc4_hvs.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
> index 546ee11016b2..c5ebc317188a 100644
> --- a/drivers/gpu/drm/vc4/vc4_hvs.c
> +++ b/drivers/gpu/drm/vc4/vc4_hvs.c
> @@ -603,7 +603,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
>   	}
>   
>   	if (vc4_state->assigned_channel == VC4_HVS_CHANNEL_DISABLED)
> -		return;
> +		goto exit;
>   
>   	if (debug_dump_regs) {
>   		DRM_INFO("CRTC %d HVS before:\n", drm_crtc_index(crtc));
> @@ -686,6 +686,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
>   		vc4_hvs_dump_state(hvs);
>   	}
>   
> +exit:
>   	drm_dev_exit(idx);
>   }
>   
>
Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland

Hi Dave,

On 10/8/24 13:44, Dave Stevenson wrote:
> Commit 92c17d16476c ("drm/vc4: hvs: Ignore atomic_flush if we're disabled")
> added a path which returned early without having called drm_dev_exit.
> 
> Ensure all paths call drm_dev_exit.
> 
> Fixes: 92c17d16476c ("drm/vc4: hvs: Ignore atomic_flush if we're disabled")
> Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

With the same comment as PATCH 1/3,

Reviewed-by: Maíra Canal <mcanal@igalia.com>

Best Regards,
- Maíra

> ---
>   drivers/gpu/drm/vc4/vc4_hvs.c | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
> index 546ee11016b2..c5ebc317188a 100644
> --- a/drivers/gpu/drm/vc4/vc4_hvs.c
> +++ b/drivers/gpu/drm/vc4/vc4_hvs.c
> @@ -603,7 +603,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
>   	}
>   
>   	if (vc4_state->assigned_channel == VC4_HVS_CHANNEL_DISABLED)
> -		return;
> +		goto exit;
>   
>   	if (debug_dump_regs) {
>   		DRM_INFO("CRTC %d HVS before:\n", drm_crtc_index(crtc));
> @@ -686,6 +686,7 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
>   		vc4_hvs_dump_state(hvs);
>   	}
>   
> +exit:
>   	drm_dev_exit(idx);
>   }
>   
>