diff options
Diffstat (limited to 'drivers/base/power/sysfs.c')
| -rw-r--r-- | drivers/base/power/sysfs.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index a9f5b8979611..17b7934f31cb 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -5,7 +5,7 @@ #include <linux/device.h> #include <linux/string.h> #include <linux/pm_runtime.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <linux/jiffies.h> #include "power.h" @@ -116,12 +116,14 @@ static ssize_t control_store(struct device * dev, struct device_attribute *attr, cp = memchr(buf, '\n', n); if (cp) len = cp - buf; + device_lock(dev); if (len == sizeof ctrl_auto - 1 && strncmp(buf, ctrl_auto, len) == 0) pm_runtime_allow(dev); else if (len == sizeof ctrl_on - 1 && strncmp(buf, ctrl_on, len) == 0) pm_runtime_forbid(dev); else - return -EINVAL; + n = -EINVAL; + device_unlock(dev); return n; } @@ -205,7 +207,9 @@ static ssize_t autosuspend_delay_ms_store(struct device *dev, if (strict_strtol(buf, 10, &delay) != 0 || delay != (int) delay) return -EINVAL; + device_lock(dev); pm_runtime_set_autosuspend_delay(dev, delay); + device_unlock(dev); return n; } |