diff mbox

GPU-DRM-GMA500: Delete unnecessary checks before two function calls

Message ID f1a0fd83-4320-f3db-e1bb-3b9832a4429f@users.sourceforge.net (mailing list archive)
State New, archived
Headers show

Commit Message

SF Markus Elfring July 22, 2016, 8:45 a.m. UTC
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Fri, 22 Jul 2016 10:30:30 +0200

The functions pci_dev_put() and psb_intel_i2c_destroy() test whether
their argument is NULL and then return immediately.
Thus the tests around their calls are not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/gpu/drm/gma500/cdv_intel_hdmi.c | 3 +--
 drivers/gpu/drm/gma500/cdv_intel_lvds.c | 9 +++------
 drivers/gpu/drm/gma500/psb_drv.c        | 6 ++----
 drivers/gpu/drm/gma500/psb_intel_lvds.c | 9 +++------
 4 files changed, 9 insertions(+), 18 deletions(-)

Comments

Daniel Vetter July 22, 2016, 9:32 a.m. UTC | #1
On Fri, Jul 22, 2016 at 10:45:30AM +0200, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Fri, 22 Jul 2016 10:30:30 +0200
> 
> The functions pci_dev_put() and psb_intel_i2c_destroy() test whether
> their argument is NULL and then return immediately.
> Thus the tests around their calls are not needed.
> 
> This issue was detected by using the Coccinelle software.
> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

Two more applied. And your threading still looks funny, all the patches
are in-reply to one I don't even have.
-Daniel

> ---
>  drivers/gpu/drm/gma500/cdv_intel_hdmi.c | 3 +--
>  drivers/gpu/drm/gma500/cdv_intel_lvds.c | 9 +++------
>  drivers/gpu/drm/gma500/psb_drv.c        | 6 ++----
>  drivers/gpu/drm/gma500/psb_intel_lvds.c | 9 +++------
>  4 files changed, 9 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/gpu/drm/gma500/cdv_intel_hdmi.c b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
> index 28f9d90..563f193 100644
> --- a/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
> +++ b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
> @@ -246,8 +246,7 @@ static void cdv_hdmi_destroy(struct drm_connector *connector)
>  {
>  	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
>  
> -	if (gma_encoder->i2c_bus)
> -		psb_intel_i2c_destroy(gma_encoder->i2c_bus);
> +	psb_intel_i2c_destroy(gma_encoder->i2c_bus);
>  	drm_connector_unregister(connector);
>  	drm_connector_cleanup(connector);
>  	kfree(connector);
> diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
> index 813ef23..38dc890 100644
> --- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c
> +++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
> @@ -444,8 +444,7 @@ static void cdv_intel_lvds_destroy(struct drm_connector *connector)
>  {
>  	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
>  
> -	if (gma_encoder->i2c_bus)
> -		psb_intel_i2c_destroy(gma_encoder->i2c_bus);
> +	psb_intel_i2c_destroy(gma_encoder->i2c_bus);
>  	drm_connector_unregister(connector);
>  	drm_connector_cleanup(connector);
>  	kfree(connector);
> @@ -780,12 +779,10 @@ out:
>  failed_find:
>  	mutex_unlock(&dev->mode_config.mutex);
>  	printk(KERN_ERR "Failed find\n");
> -	if (gma_encoder->ddc_bus)
> -		psb_intel_i2c_destroy(gma_encoder->ddc_bus);
> +	psb_intel_i2c_destroy(gma_encoder->ddc_bus);
>  failed_ddc:
>  	printk(KERN_ERR "Failed DDC\n");
> -	if (gma_encoder->i2c_bus)
> -		psb_intel_i2c_destroy(gma_encoder->i2c_bus);
> +	psb_intel_i2c_destroy(gma_encoder->i2c_bus);
>  failed_blc_i2c:
>  	printk(KERN_ERR "Failed BLC\n");
>  	drm_encoder_cleanup(encoder);
> diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
> index 82b8ce4..50eb944f 100644
> --- a/drivers/gpu/drm/gma500/psb_drv.c
> +++ b/drivers/gpu/drm/gma500/psb_drv.c
> @@ -210,10 +210,8 @@ static int psb_driver_unload(struct drm_device *dev)
>  			iounmap(dev_priv->aux_reg);
>  			dev_priv->aux_reg = NULL;
>  		}
> -		if (dev_priv->aux_pdev)
> -			pci_dev_put(dev_priv->aux_pdev);
> -		if (dev_priv->lpc_pdev)
> -			pci_dev_put(dev_priv->lpc_pdev);
> +		pci_dev_put(dev_priv->aux_pdev);
> +		pci_dev_put(dev_priv->lpc_pdev);
>  
>  		/* Destroy VBT data */
>  		psb_intel_destroy_bios(dev);
> diff --git a/drivers/gpu/drm/gma500/psb_intel_lvds.c b/drivers/gpu/drm/gma500/psb_intel_lvds.c
> index b1b9331..e55733c 100644
> --- a/drivers/gpu/drm/gma500/psb_intel_lvds.c
> +++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c
> @@ -561,8 +561,7 @@ void psb_intel_lvds_destroy(struct drm_connector *connector)
>  	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
>  	struct psb_intel_lvds_priv *lvds_priv = gma_encoder->dev_priv;
>  
> -	if (lvds_priv->ddc_bus)
> -		psb_intel_i2c_destroy(lvds_priv->ddc_bus);
> +	psb_intel_i2c_destroy(lvds_priv->ddc_bus);
>  	drm_connector_unregister(connector);
>  	drm_connector_cleanup(connector);
>  	kfree(connector);
> @@ -835,11 +834,9 @@ out:
>  
>  failed_find:
>  	mutex_unlock(&dev->mode_config.mutex);
> -	if (lvds_priv->ddc_bus)
> -		psb_intel_i2c_destroy(lvds_priv->ddc_bus);
> +	psb_intel_i2c_destroy(lvds_priv->ddc_bus);
>  failed_ddc:
> -	if (lvds_priv->i2c_bus)
> -		psb_intel_i2c_destroy(lvds_priv->i2c_bus);
> +	psb_intel_i2c_destroy(lvds_priv->i2c_bus);
>  failed_blc_i2c:
>  	drm_encoder_cleanup(encoder);
>  	drm_connector_cleanup(connector);
> -- 
> 2.9.2
>
diff mbox

Patch

diff --git a/drivers/gpu/drm/gma500/cdv_intel_hdmi.c b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
index 28f9d90..563f193 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
@@ -246,8 +246,7 @@  static void cdv_hdmi_destroy(struct drm_connector *connector)
 {
 	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
 
-	if (gma_encoder->i2c_bus)
-		psb_intel_i2c_destroy(gma_encoder->i2c_bus);
+	psb_intel_i2c_destroy(gma_encoder->i2c_bus);
 	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
 	kfree(connector);
diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
index 813ef23..38dc890 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
@@ -444,8 +444,7 @@  static void cdv_intel_lvds_destroy(struct drm_connector *connector)
 {
 	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
 
-	if (gma_encoder->i2c_bus)
-		psb_intel_i2c_destroy(gma_encoder->i2c_bus);
+	psb_intel_i2c_destroy(gma_encoder->i2c_bus);
 	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
 	kfree(connector);
@@ -780,12 +779,10 @@  out:
 failed_find:
 	mutex_unlock(&dev->mode_config.mutex);
 	printk(KERN_ERR "Failed find\n");
-	if (gma_encoder->ddc_bus)
-		psb_intel_i2c_destroy(gma_encoder->ddc_bus);
+	psb_intel_i2c_destroy(gma_encoder->ddc_bus);
 failed_ddc:
 	printk(KERN_ERR "Failed DDC\n");
-	if (gma_encoder->i2c_bus)
-		psb_intel_i2c_destroy(gma_encoder->i2c_bus);
+	psb_intel_i2c_destroy(gma_encoder->i2c_bus);
 failed_blc_i2c:
 	printk(KERN_ERR "Failed BLC\n");
 	drm_encoder_cleanup(encoder);
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 82b8ce4..50eb944f 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -210,10 +210,8 @@  static int psb_driver_unload(struct drm_device *dev)
 			iounmap(dev_priv->aux_reg);
 			dev_priv->aux_reg = NULL;
 		}
-		if (dev_priv->aux_pdev)
-			pci_dev_put(dev_priv->aux_pdev);
-		if (dev_priv->lpc_pdev)
-			pci_dev_put(dev_priv->lpc_pdev);
+		pci_dev_put(dev_priv->aux_pdev);
+		pci_dev_put(dev_priv->lpc_pdev);
 
 		/* Destroy VBT data */
 		psb_intel_destroy_bios(dev);
diff --git a/drivers/gpu/drm/gma500/psb_intel_lvds.c b/drivers/gpu/drm/gma500/psb_intel_lvds.c
index b1b9331..e55733c 100644
--- a/drivers/gpu/drm/gma500/psb_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c
@@ -561,8 +561,7 @@  void psb_intel_lvds_destroy(struct drm_connector *connector)
 	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
 	struct psb_intel_lvds_priv *lvds_priv = gma_encoder->dev_priv;
 
-	if (lvds_priv->ddc_bus)
-		psb_intel_i2c_destroy(lvds_priv->ddc_bus);
+	psb_intel_i2c_destroy(lvds_priv->ddc_bus);
 	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
 	kfree(connector);
@@ -835,11 +834,9 @@  out:
 
 failed_find:
 	mutex_unlock(&dev->mode_config.mutex);
-	if (lvds_priv->ddc_bus)
-		psb_intel_i2c_destroy(lvds_priv->ddc_bus);
+	psb_intel_i2c_destroy(lvds_priv->ddc_bus);
 failed_ddc:
-	if (lvds_priv->i2c_bus)
-		psb_intel_i2c_destroy(lvds_priv->i2c_bus);
+	psb_intel_i2c_destroy(lvds_priv->i2c_bus);
 failed_blc_i2c:
 	drm_encoder_cleanup(encoder);
 	drm_connector_cleanup(connector);