diff options
author | Ingo Molnar <mingo@elte.hu> | 2012-03-13 16:32:54 +0100 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2012-03-13 16:33:03 +0100 |
commit | ef15eda98217f5183f457e7a2de8b79555ef908b (patch) | |
tree | f8f22b48f7bb237c9aa6646175f3e17eeac4af0e /drivers/watchdog/s3c2410_wdt.c | |
parent | 5cb4ac3a583d4ee18c8682ab857e093c4a0d0895 (diff) | |
parent | ef334a20d84f52407a8a2afd02ddeaecbef0ad3d (diff) |
Merge branch 'x86/cleanups' into perf/uprobes
Merge reason: We want to merge a dependent patch.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/watchdog/s3c2410_wdt.c')
-rw-r--r-- | drivers/watchdog/s3c2410_wdt.c | 57 |
1 files changed, 31 insertions, 26 deletions
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 4bc3744e14e..404172f02c9 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -312,18 +312,26 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) dev = &pdev->dev; wdt_dev = &pdev->dev; - /* get the memory region for the watchdog timer */ - wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (wdt_mem == NULL) { dev_err(dev, "no memory resource specified\n"); return -ENOENT; } + wdt_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (wdt_irq == NULL) { + dev_err(dev, "no irq resource specified\n"); + ret = -ENOENT; + goto err; + } + + /* get the memory region for the watchdog timer */ + 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; + ret = -EBUSY; + goto err; } wdt_base = ioremap(wdt_mem->start, size); @@ -335,29 +343,17 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) DBG("probe: mapped wdt_base=%p\n", wdt_base); - wdt_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (wdt_irq == NULL) { - dev_err(dev, "no irq resource specified\n"); - ret = -ENOENT; - goto err_map; - } - - ret = request_irq(wdt_irq->start, s3c2410wdt_irq, 0, pdev->name, pdev); - if (ret != 0) { - dev_err(dev, "failed to install irq (%d)\n", ret); - goto err_map; - } - wdt_clock = clk_get(&pdev->dev, "watchdog"); if (IS_ERR(wdt_clock)) { dev_err(dev, "failed to find watchdog clock source\n"); ret = PTR_ERR(wdt_clock); - goto err_irq; + goto err_map; } clk_enable(wdt_clock); - if (s3c2410wdt_cpufreq_register() < 0) { + ret = s3c2410wdt_cpufreq_register(); + if (ret < 0) { printk(KERN_ERR PFX "failed to register cpufreq\n"); goto err_clk; } @@ -378,12 +374,18 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) "cannot start\n"); } + ret = request_irq(wdt_irq->start, s3c2410wdt_irq, 0, pdev->name, pdev); + if (ret != 0) { + dev_err(dev, "failed to install irq (%d)\n", ret); + goto err_cpufreq; + } + watchdog_set_nowayout(&s3c2410_wdd, nowayout); ret = watchdog_register_device(&s3c2410_wdd); if (ret) { dev_err(dev, "cannot register watchdog (%d)\n", ret); - goto err_cpufreq; + goto err_irq; } if (tmr_atboot && started == 0) { @@ -408,23 +410,26 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) return 0; + err_irq: + free_irq(wdt_irq->start, pdev); + err_cpufreq: s3c2410wdt_cpufreq_deregister(); err_clk: clk_disable(wdt_clock); clk_put(wdt_clock); - - err_irq: - free_irq(wdt_irq->start, pdev); + wdt_clock = NULL; err_map: iounmap(wdt_base); err_req: release_mem_region(wdt_mem->start, size); - wdt_mem = NULL; + err: + wdt_irq = NULL; + wdt_mem = NULL; return ret; } @@ -432,18 +437,18 @@ static int __devexit s3c2410wdt_remove(struct platform_device *dev) { watchdog_unregister_device(&s3c2410_wdd); + free_irq(wdt_irq->start, dev); + s3c2410wdt_cpufreq_deregister(); clk_disable(wdt_clock); clk_put(wdt_clock); wdt_clock = NULL; - free_irq(wdt_irq->start, dev); - wdt_irq = NULL; - iounmap(wdt_base); release_mem_region(wdt_mem->start, resource_size(wdt_mem)); + wdt_irq = NULL; wdt_mem = NULL; return 0; } |