diff options
| author | Mattia Dongili <malattia@linux.it> | 2009-03-26 21:58:23 +0900 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-03-27 12:20:02 -0400 |
| commit | c9f1e6f67ad6d16c11586a4550fd054d7538eb92 (patch) | |
| tree | a57a49556d2722c500b57558628fa7557fcd4213 /drivers/platform | |
| parent | f5acf5e898618295895b61d81681ae3115d94b96 (diff) | |
| download | linux-stable-c9f1e6f67ad6d16c11586a4550fd054d7538eb92.tar.gz linux-stable-c9f1e6f67ad6d16c11586a4550fd054d7538eb92.tar.bz2 linux-stable-c9f1e6f67ad6d16c11586a4550fd054d7538eb92.zip | |
sony-laptop: Make sony_pic_set_wwanpower not take mutexes
For consistency with __sony_pic_set_bluetoothpower, this is also needed
later to allow setting the wwanpower attribute from the resume path and
only lock the mutex once.
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/platform')
| -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; } |