diff mbox

[3/5] drivers/video/mbx/mbxfb.c: use devm_ functions

Message ID 1343752762-16861-2-git-send-email-damien.cassou@lifl.fr (mailing list archive)
State New, archived
Headers show

Commit Message

Damien Cassou July 31, 2012, 4:39 p.m. UTC
From: Damien Cassou <damien.cassou@lifl.fr>

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>

---
 drivers/video/mbx/mbxfb.c |   22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)


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Comments

Florian Tobias Schandinat Aug. 23, 2012, 8:37 p.m. UTC | #1
On 07/31/2012 04:39 PM, Damien Cassou wrote:
> From: Damien Cassou <damien.cassou@lifl.fr>
> 
> The various devm_ functions allocate memory that is released when a driver
> detaches.  This patch uses these functions for data that is allocated in
> the probe function of a platform device and is only freed in the remove
> function.
> 
> Signed-off-by: Damien Cassou <damien.cassou@lifl.fr>

Applied.


Thanks,

Florian Tobias Schandinat

> 
> ---
>  drivers/video/mbx/mbxfb.c |   22 ++++++++--------------
>  1 file changed, 8 insertions(+), 14 deletions(-)
> 
> diff --git a/drivers/video/mbx/mbxfb.c b/drivers/video/mbx/mbxfb.c
> index 85e4f44..9229acf 100644
> --- a/drivers/video/mbx/mbxfb.c
> +++ b/drivers/video/mbx/mbxfb.c
> @@ -939,8 +939,9 @@ static int __devinit mbxfb_probe(struct platform_device *dev)
>  	}
>  	mfbi->reg_phys_addr = mfbi->reg_res->start;
>  
> -	mfbi->reg_virt_addr = ioremap_nocache(mfbi->reg_phys_addr,
> -					      res_size(mfbi->reg_req));
> +	mfbi->reg_virt_addr = devm_ioremap_nocache(&dev->dev,
> +						   mfbi->reg_phys_addr,
> +						   res_size(mfbi->reg_req));
>  	if (!mfbi->reg_virt_addr) {
>  		dev_err(&dev->dev, "failed to ioremap Marathon registers\n");
>  		ret = -EINVAL;
> @@ -948,12 +949,12 @@ static int __devinit mbxfb_probe(struct platform_device *dev)
>  	}
>  	virt_base_2700 = mfbi->reg_virt_addr;
>  
> -	mfbi->fb_virt_addr = ioremap_nocache(mfbi->fb_phys_addr,
> -					     res_size(mfbi->fb_req));
> +	mfbi->fb_virt_addr = devm_ioremap_nocache(&dev->dev, mfbi->fb_phys_addr,
> +						  res_size(mfbi->fb_req));
>  	if (!mfbi->fb_virt_addr) {
>  		dev_err(&dev->dev, "failed to ioremap frame buffer\n");
>  		ret = -EINVAL;
> -		goto err4;
> +		goto err3;
>  	}
>  
>  	fbi->screen_base = (char __iomem *)(mfbi->fb_virt_addr + 0x60000);
> @@ -971,7 +972,7 @@ static int __devinit mbxfb_probe(struct platform_device *dev)
>  	if (ret < 0) {
>  		dev_err(&dev->dev, "fb_alloc_cmap failed\n");
>  		ret = -EINVAL;
> -		goto err5;
> +		goto err3;
>  	}
>  
>  	platform_set_drvdata(dev, fbi);
> @@ -996,10 +997,6 @@ static int __devinit mbxfb_probe(struct platform_device *dev)
>  
>  err6:
>  	fb_dealloc_cmap(&fbi->cmap);
> -err5:
> -	iounmap(mfbi->fb_virt_addr);
> -err4:
> -	iounmap(mfbi->reg_virt_addr);
>  err3:
>  	release_mem_region(mfbi->reg_res->start, res_size(mfbi->reg_res));
>  err2:
> @@ -1026,10 +1023,7 @@ static int __devexit mbxfb_remove(struct platform_device *dev)
>  			if (mfbi->platform_remove)
>  				mfbi->platform_remove(fbi);
>  
> -			if (mfbi->fb_virt_addr)
> -				iounmap(mfbi->fb_virt_addr);
> -			if (mfbi->reg_virt_addr)
> -				iounmap(mfbi->reg_virt_addr);
> +
>  			if (mfbi->reg_req)
>  				release_mem_region(mfbi->reg_req->start,
>  						   res_size(mfbi->reg_req));
> 
> 

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diff mbox

Patch

diff --git a/drivers/video/mbx/mbxfb.c b/drivers/video/mbx/mbxfb.c
index 85e4f44..9229acf 100644
--- a/drivers/video/mbx/mbxfb.c
+++ b/drivers/video/mbx/mbxfb.c
@@ -939,8 +939,9 @@  static int __devinit mbxfb_probe(struct platform_device *dev)
 	}
 	mfbi->reg_phys_addr = mfbi->reg_res->start;
 
-	mfbi->reg_virt_addr = ioremap_nocache(mfbi->reg_phys_addr,
-					      res_size(mfbi->reg_req));
+	mfbi->reg_virt_addr = devm_ioremap_nocache(&dev->dev,
+						   mfbi->reg_phys_addr,
+						   res_size(mfbi->reg_req));
 	if (!mfbi->reg_virt_addr) {
 		dev_err(&dev->dev, "failed to ioremap Marathon registers\n");
 		ret = -EINVAL;
@@ -948,12 +949,12 @@  static int __devinit mbxfb_probe(struct platform_device *dev)
 	}
 	virt_base_2700 = mfbi->reg_virt_addr;
 
-	mfbi->fb_virt_addr = ioremap_nocache(mfbi->fb_phys_addr,
-					     res_size(mfbi->fb_req));
+	mfbi->fb_virt_addr = devm_ioremap_nocache(&dev->dev, mfbi->fb_phys_addr,
+						  res_size(mfbi->fb_req));
 	if (!mfbi->fb_virt_addr) {
 		dev_err(&dev->dev, "failed to ioremap frame buffer\n");
 		ret = -EINVAL;
-		goto err4;
+		goto err3;
 	}
 
 	fbi->screen_base = (char __iomem *)(mfbi->fb_virt_addr + 0x60000);
@@ -971,7 +972,7 @@  static int __devinit mbxfb_probe(struct platform_device *dev)
 	if (ret < 0) {
 		dev_err(&dev->dev, "fb_alloc_cmap failed\n");
 		ret = -EINVAL;
-		goto err5;
+		goto err3;
 	}
 
 	platform_set_drvdata(dev, fbi);
@@ -996,10 +997,6 @@  static int __devinit mbxfb_probe(struct platform_device *dev)
 
 err6:
 	fb_dealloc_cmap(&fbi->cmap);
-err5:
-	iounmap(mfbi->fb_virt_addr);
-err4:
-	iounmap(mfbi->reg_virt_addr);
 err3:
 	release_mem_region(mfbi->reg_res->start, res_size(mfbi->reg_res));
 err2:
@@ -1026,10 +1023,7 @@  static int __devexit mbxfb_remove(struct platform_device *dev)
 			if (mfbi->platform_remove)
 				mfbi->platform_remove(fbi);
 
-			if (mfbi->fb_virt_addr)
-				iounmap(mfbi->fb_virt_addr);
-			if (mfbi->reg_virt_addr)
-				iounmap(mfbi->reg_virt_addr);
+
 			if (mfbi->reg_req)
 				release_mem_region(mfbi->reg_req->start,
 						   res_size(mfbi->reg_req));