diff options
| -rw-r--r-- | drivers/platform/x86/sony-laptop.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 3575a2d8f1ce..8796dc69950e 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -2001,18 +2001,14 @@ int sony_pic_camera_command(int command, u8 value) EXPORT_SYMBOL(sony_pic_camera_command); /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */ -static void sony_pic_set_wwanpower(u8 state) +static void __sony_pic_set_wwanpower(u8 state) { state = !!state; - mutex_lock(&spic_dev.lock); - if (spic_dev.wwan_power == state) { - mutex_unlock(&spic_dev.lock); + if (spic_dev.wwan_power == state) return; - } sony_pic_call2(0xB0, state); sony_pic_call1(0x82); spic_dev.wwan_power = state; - mutex_unlock(&spic_dev.lock); } static ssize_t sony_pic_wwanpower_store(struct device *dev, @@ -2024,7 +2020,9 @@ static ssize_t sony_pic_wwanpower_store(struct device *dev, return -EINVAL; value = simple_strtoul(buffer, NULL, 10); - sony_pic_set_wwanpower(value); + mutex_lock(&spic_dev.lock); + __sony_pic_set_wwanpower(value); + mutex_unlock(&spic_dev.lock); return count; } |