Apr 23 2011

drivers/video: Convert release_resource to release_mem_region 

Author: Julia Lawall <julia@diku.dk>

Request_mem_region should be used with release_mem_region, not
release_resource.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// 
@s exists@
expression e1,e2,e3,e4,e;
@@

*e4 = request_mem_region(e1,e2,e3)
... when != e4 = e
*release_resource(e4);
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Paul Mundt 

---
 drivers/video/s3c-fb.c   | 6 ++----
 drivers/video/sh7760fb.c | 6 ++----
 2 files changed, 4 insertions(+), 8 deletions(-)
 
diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 3fa7911..d570e58 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -1449,8 +1449,7 @@ err_ioremap:
 	iounmap(sfb->regs);
 
 err_req_region:
-	release_resource(sfb->regs_res);
-	kfree(sfb->regs_res);
+	release_mem_region(sfb->regs_res->start, resource_size(sfb->regs_res));
 
 err_clk:
 	clk_disable(sfb->bus_clk);
@@ -1486,8 +1485,7 @@ static int __devexit s3c_fb_remove(struct platform_device *pdev)
 	clk_disable(sfb->bus_clk);
 	clk_put(sfb->bus_clk);
 
-	release_resource(sfb->regs_res);
-	kfree(sfb->regs_res);
+	release_mem_region(sfb->regs_res->start, resource_size(sfb->regs_res));
 
 	kfree(sfb);
 
diff --git a/drivers/video/sh7760fb.c b/drivers/video/sh7760fb.c
index 8fe1958..45e47d8 100644
--- a/drivers/video/sh7760fb.c
+++ b/drivers/video/sh7760fb.c
@@ -551,8 +551,7 @@ out_unmap:
 		free_irq(par->irq, &par->vsync);
 	iounmap(par->base);
 out_res:
-	release_resource(par->ioarea);
-	kfree(par->ioarea);
+	release_mem_region(res->start, resource_size(res));
 out_fb:
 	framebuffer_release(info);
 	return ret;
@@ -570,8 +569,7 @@ static int __devexit sh7760fb_remove(struct platform_device *dev)
 	if (par->irq >= 0)
 		free_irq(par->irq, par);
 	iounmap(par->base);
-	release_resource(par->ioarea);
-	kfree(par->ioarea);
+	release_mem_region(par->ioarea->start, resource_size(par->ioarea));
 	framebuffer_release(info);
 	platform_set_drvdata(dev, NULL);

qlambert