[35/51] drm/pl111: Drop explicit drm_mode_config_cleanup call
diff mbox series

Message ID 20200302222631.3861340-36-daniel.vetter@ffwll.ch
State New
Headers show
Series
  • drm_device managed resources, v4
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Commit Message

Daniel Vetter March 2, 2020, 10:26 p.m. UTC
It's right above the drm_dev_put().

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

Aside: This driver gets its devm_ stuff all wrong wrt drm_device and
anything hanging off that. Not the only one unfortunately.

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/pl111/pl111_drv.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Comments

Sam Ravnborg March 7, 2020, 8:37 a.m. UTC | #1
On Mon, Mar 02, 2020 at 11:26:15PM +0100, Daniel Vetter wrote:
> It's right above the drm_dev_put().
> 
> This is made possible by a preceeding patch which added a drmm_
> cleanup action to drm_mode_config_init(), hence all we need to do to
> ensure that drm_mode_config_cleanup() is run on final drm_device
> cleanup is check the new error code for _init().
> 
> Aside: This driver gets its devm_ stuff all wrong wrt drm_device and
> anything hanging off that. Not the only one unfortunately.
> 
> v2: Explain why this cleanup is possible (Laurent).
> 
> v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)
> 
> Cc: Sam Ravnborg <sam@ravnborg.org>
> Cc: Thomas Zimmermann <tzimmermann@suse.de>
> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Eric Anholt <eric@anholt.net>

Acked-by: Sam Ravnborg <sam@ravnborg.org>

> ---
>  drivers/gpu/drm/pl111/pl111_drv.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
> index aa8aa8d9e405..f9ca0f3edbbb 100644
> --- a/drivers/gpu/drm/pl111/pl111_drv.c
> +++ b/drivers/gpu/drm/pl111/pl111_drv.c
> @@ -90,10 +90,13 @@ static int pl111_modeset_init(struct drm_device *dev)
>  	struct drm_panel *panel = NULL;
>  	struct drm_bridge *bridge = NULL;
>  	bool defer = false;
> -	int ret = 0;
> +	int ret;
>  	int i;
>  
> -	drm_mode_config_init(dev);
> +	ret = drmm_mode_config_init(dev);
> +	if (ret)
> +		return ret;
> +
>  	mode_config = &dev->mode_config;
>  	mode_config->funcs = &mode_config_funcs;
>  	mode_config->min_width = 1;
> @@ -154,7 +157,7 @@ static int pl111_modeset_init(struct drm_device *dev)
>  						    DRM_MODE_CONNECTOR_Unknown);
>  		if (IS_ERR(bridge)) {
>  			ret = PTR_ERR(bridge);
> -			goto out_config;
> +			goto finish;
>  		}
>  	} else if (bridge) {
>  		dev_info(dev->dev, "Using non-panel bridge\n");
> @@ -197,8 +200,6 @@ static int pl111_modeset_init(struct drm_device *dev)
>  out_bridge:
>  	if (panel)
>  		drm_panel_bridge_remove(bridge);
> -out_config:
> -	drm_mode_config_cleanup(dev);
>  finish:
>  	return ret;
>  }
> @@ -343,7 +344,6 @@ static int pl111_amba_remove(struct amba_device *amba_dev)
>  	drm_dev_unregister(drm);
>  	if (priv->panel)
>  		drm_panel_bridge_remove(priv->bridge);
> -	drm_mode_config_cleanup(drm);
>  	drm_dev_put(drm);
>  	of_reserved_mem_device_release(dev);
>  
> -- 
> 2.24.1
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel

Patch
diff mbox series

diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
index aa8aa8d9e405..f9ca0f3edbbb 100644
--- a/drivers/gpu/drm/pl111/pl111_drv.c
+++ b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -90,10 +90,13 @@  static int pl111_modeset_init(struct drm_device *dev)
 	struct drm_panel *panel = NULL;
 	struct drm_bridge *bridge = NULL;
 	bool defer = false;
-	int ret = 0;
+	int ret;
 	int i;
 
-	drm_mode_config_init(dev);
+	ret = drmm_mode_config_init(dev);
+	if (ret)
+		return ret;
+
 	mode_config = &dev->mode_config;
 	mode_config->funcs = &mode_config_funcs;
 	mode_config->min_width = 1;
@@ -154,7 +157,7 @@  static int pl111_modeset_init(struct drm_device *dev)
 						    DRM_MODE_CONNECTOR_Unknown);
 		if (IS_ERR(bridge)) {
 			ret = PTR_ERR(bridge);
-			goto out_config;
+			goto finish;
 		}
 	} else if (bridge) {
 		dev_info(dev->dev, "Using non-panel bridge\n");
@@ -197,8 +200,6 @@  static int pl111_modeset_init(struct drm_device *dev)
 out_bridge:
 	if (panel)
 		drm_panel_bridge_remove(bridge);
-out_config:
-	drm_mode_config_cleanup(dev);
 finish:
 	return ret;
 }
@@ -343,7 +344,6 @@  static int pl111_amba_remove(struct amba_device *amba_dev)
 	drm_dev_unregister(drm);
 	if (priv->panel)
 		drm_panel_bridge_remove(priv->bridge);
-	drm_mode_config_cleanup(drm);
 	drm_dev_put(drm);
 	of_reserved_mem_device_release(dev);