[PATCH] drm/bridge: tfp410: Remove a small useless code snippet

[PATCH] drm/bridge: tfp410: Remove a small useless code snippet

[Sui Jingfeng]

In the tfp410_attach(), the check on the existence of bridge->encoder has
already been done in the implementation of drm_bridge_attach() function.
The driver won't go further if bridge->encoder is NULL and the driver will
quit even if drm_bridge_attach() fails for some reasons.

Therefore there is no need to check another time at the later, remove the
redundant checking codes "if (!bridge->encoder) { ... }".

Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
---
 drivers/gpu/drm/bridge/ti-tfp410.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c
index c7bef5c23927..b1b1e4d5a24a 100644
--- a/drivers/gpu/drm/bridge/ti-tfp410.c
+++ b/drivers/gpu/drm/bridge/ti-tfp410.c
@@ -133,11 +133,6 @@ static int tfp410_attach(struct drm_bridge *bridge,
 	if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)
 		return 0;
 
-	if (!bridge->encoder) {
-		dev_err(dvi->dev, "Missing encoder\n");
-		return -ENODEV;
-	}
-
 	if (dvi->next_bridge->ops & DRM_BRIDGE_OP_DETECT)
 		dvi->connector.polled = DRM_CONNECTOR_POLL_HPD;
 	else
-- 
2.43.0

Re: [PATCH] drm/bridge: tfp410: Remove a small useless code snippet

[Laurent Pinchart]

Hi Sui,

Thank you for the patch.

On Sat, May 11, 2024 at 09:24:23PM +0800, Sui Jingfeng wrote:
> In the tfp410_attach(), the check on the existence of bridge->encoder has
> already been done in the implementation of drm_bridge_attach() function.
> The driver won't go further if bridge->encoder is NULL and the driver will
> quit even if drm_bridge_attach() fails for some reasons.
> 
> Therefore there is no need to check another time at the later, remove the
> redundant checking codes "if (!bridge->encoder) { ... }".
> 
> Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
>  drivers/gpu/drm/bridge/ti-tfp410.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c
> index c7bef5c23927..b1b1e4d5a24a 100644
> --- a/drivers/gpu/drm/bridge/ti-tfp410.c
> +++ b/drivers/gpu/drm/bridge/ti-tfp410.c
> @@ -133,11 +133,6 @@ static int tfp410_attach(struct drm_bridge *bridge,
>  	if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)
>  		return 0;
>  
> -	if (!bridge->encoder) {
> -		dev_err(dvi->dev, "Missing encoder\n");
> -		return -ENODEV;
> -	}
> -
>  	if (dvi->next_bridge->ops & DRM_BRIDGE_OP_DETECT)
>  		dvi->connector.polled = DRM_CONNECTOR_POLL_HPD;
>  	else

-- 
Regards,

Laurent Pinchart