diff options
Diffstat (limited to 'drivers/sh/intc/userimask.c')
| -rw-r--r-- | drivers/sh/intc/userimask.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/sh/intc/userimask.c b/drivers/sh/intc/userimask.c index e649ceaaa410..a363f77881d1 100644 --- a/drivers/sh/intc/userimask.c +++ b/drivers/sh/intc/userimask.c @@ -14,7 +14,7 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/stat.h> -#include <asm/sizes.h> +#include <linux/sizes.h> #include "internals.h" static void __iomem *uimask; @@ -32,8 +32,11 @@ store_intc_userimask(struct device *dev, const char *buf, size_t count) { unsigned long level; + int ret; - level = simple_strtoul(buf, NULL, 10); + ret = kstrtoul(buf, 10, &level); + if (ret != 0) + return ret; /* * Minimal acceptable IRQ levels are in the 2 - 16 range, but @@ -61,10 +64,18 @@ static DEVICE_ATTR(userimask, S_IRUSR | S_IWUSR, static int __init userimask_sysdev_init(void) { + struct device *dev_root; + int ret = 0; + if (unlikely(!uimask)) return -ENXIO; - return device_create_file(intc_subsys.dev_root, &dev_attr_userimask); + dev_root = bus_get_dev_root(&intc_subsys); + if (dev_root) { + ret = device_create_file(dev_root, &dev_attr_userimask); + put_device(dev_root); + } + return ret; } late_initcall(userimask_sysdev_init); @@ -73,7 +84,7 @@ int register_intc_userimask(unsigned long addr) if (unlikely(uimask)) return -EBUSY; - uimask = ioremap_nocache(addr, SZ_4K); + uimask = ioremap(addr, SZ_4K); if (unlikely(!uimask)) return -ENOMEM; |