diff options
| author | Julia Lawall <julia@diku.dk> | 2011-02-26 17:34:38 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-14 13:02:03 -0700 |
| commit | 665c7153a7d73d524ed6b4783c3bd8a521285a9b (patch) | |
| tree | b8142f9f43955624349e5bfe8695fa28b9b451e3 /drivers/watchdog | |
| parent | 53a624a9467771174585e85b4b6b3d7f23ec9526 (diff) | |
watchdog: s3c2410_wdt.c: Convert release_resource to release_region/release_mem_region
commit f72401e94d159bc4b2beab51d74e956da2c32e0a upstream.
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>
@@
expression x,E;
@@
*x = request_mem_region(...)
... when != release_mem_region(x)
when != x = E
* release_resource(x);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/s3c2410_wdt.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index ae53662c29b..8303c576c57 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -402,7 +402,6 @@ static inline void s3c2410wdt_cpufreq_deregister(void) static int __devinit s3c2410wdt_probe(struct platform_device *pdev) { - struct resource *res; struct device *dev; unsigned int wtcon; int started = 0; @@ -416,20 +415,19 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) /* get the memory region for the watchdog timer */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { + wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (wdt_mem == NULL) { dev_err(dev, "no memory resource specified\n"); return -ENOENT; } - size = resource_size(res); - wdt_mem = request_mem_region(res->start, size, pdev->name); - if (wdt_mem == NULL) { + size = resource_size(wdt_mem); + if (!request_mem_region(wdt_mem->start, size, pdev->name)) { dev_err(dev, "failed to get memory region\n"); return -EBUSY; } - wdt_base = ioremap(res->start, size); + wdt_base = ioremap(wdt_mem->start, size); if (wdt_base == NULL) { dev_err(dev, "failed to ioremap() region\n"); ret = -EINVAL; @@ -524,8 +522,8 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) iounmap(wdt_base); err_req: - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; return ret; } @@ -545,8 +543,7 @@ static int __devexit s3c2410wdt_remove(struct platform_device *dev) iounmap(wdt_base); - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, resource_size(wdt_mem)); wdt_mem = NULL; return 0; } |