From: Julia Lawall <julia@diku.dk>
To: Paul Mundt <lethal@linux-sh.org>
Cc: kernel-janitors@vger.kernel.org, linux-fbdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] drivers/video: Convert release_resource to release_mem_region
Date: Fri, 22 Apr 2011 20:11:21 +0000 [thread overview]
Message-ID: <1303503083-26170-1-git-send-email-julia@diku.dk> (raw)
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/)
// <smpl>
@s exists@
expression e1,e2,e3,e4,e;
@@
*e4 = request_mem_region(e1,e2,e3)
... when != e4 = e
*release_resource(e4);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
---
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);
reply other threads:[~2011-04-22 20:11 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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