[PATCH] hwmon: Semaphore to mutex conversions
convert drivers/hwmon/*.c semaphore use to mutexes.
the conversion was generated via scripts, and the result was validated
automatically via a script as well.
all affected hwmon drivers were build-tested.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c
index 23a9e1e..7636c1a 100644
--- a/drivers/hwmon/hdaps.c
+++ b/drivers/hwmon/hdaps.c
@@ -33,6 +33,7 @@
#include <linux/module.h>
#include <linux/timer.h>
#include <linux/dmi.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#define HDAPS_LOW_PORT 0x1600 /* first port used by hdaps */
@@ -70,10 +71,10 @@
static int rest_x;
static int rest_y;
-static DECLARE_MUTEX(hdaps_sem);
+static DEFINE_MUTEX(hdaps_mutex);
/*
- * __get_latch - Get the value from a given port. Callers must hold hdaps_sem.
+ * __get_latch - Get the value from a given port. Callers must hold hdaps_mutex.
*/
static inline u8 __get_latch(u16 port)
{
@@ -82,7 +83,7 @@
/*
* __check_latch - Check a port latch for a given value. Returns zero if the
- * port contains the given value. Callers must hold hdaps_sem.
+ * port contains the given value. Callers must hold hdaps_mutex.
*/
static inline int __check_latch(u16 port, u8 val)
{
@@ -93,7 +94,7 @@
/*
* __wait_latch - Wait up to 100us for a port latch to get a certain value,
- * returning zero if the value is obtained. Callers must hold hdaps_sem.
+ * returning zero if the value is obtained. Callers must hold hdaps_mutex.
*/
static int __wait_latch(u16 port, u8 val)
{
@@ -110,7 +111,7 @@
/*
* __device_refresh - request a refresh from the accelerometer. Does not wait
- * for refresh to complete. Callers must hold hdaps_sem.
+ * for refresh to complete. Callers must hold hdaps_mutex.
*/
static void __device_refresh(void)
{
@@ -124,7 +125,7 @@
/*
* __device_refresh_sync - request a synchronous refresh from the
* accelerometer. We wait for the refresh to complete. Returns zero if
- * successful and nonzero on error. Callers must hold hdaps_sem.
+ * successful and nonzero on error. Callers must hold hdaps_mutex.
*/
static int __device_refresh_sync(void)
{
@@ -134,7 +135,7 @@
/*
* __device_complete - indicate to the accelerometer that we are done reading
- * data, and then initiate an async refresh. Callers must hold hdaps_sem.
+ * data, and then initiate an async refresh. Callers must hold hdaps_mutex.
*/
static inline void __device_complete(void)
{
@@ -152,7 +153,7 @@
{
int ret;
- down(&hdaps_sem);
+ mutex_lock(&hdaps_mutex);
/* do a sync refresh -- we need to be sure that we read fresh data */
ret = __device_refresh_sync();
@@ -163,7 +164,7 @@
__device_complete();
out:
- up(&hdaps_sem);
+ mutex_unlock(&hdaps_mutex);
return ret;
}
@@ -198,9 +199,9 @@
{
int ret;
- down(&hdaps_sem);
+ mutex_lock(&hdaps_mutex);
ret = __hdaps_read_pair(port1, port2, val1, val2);
- up(&hdaps_sem);
+ mutex_unlock(&hdaps_mutex);
return ret;
}
@@ -213,7 +214,7 @@
{
int total, ret = -ENXIO;
- down(&hdaps_sem);
+ mutex_lock(&hdaps_mutex);
outb(0x13, 0x1610);
outb(0x01, 0x161f);
@@ -279,7 +280,7 @@
}
out:
- up(&hdaps_sem);
+ mutex_unlock(&hdaps_mutex);
return ret;
}
@@ -313,7 +314,7 @@
};
/*
- * hdaps_calibrate - Set our "resting" values. Callers must hold hdaps_sem.
+ * hdaps_calibrate - Set our "resting" values. Callers must hold hdaps_mutex.
*/
static void hdaps_calibrate(void)
{
@@ -325,7 +326,7 @@
int x, y;
/* Cannot sleep. Try nonblockingly. If we fail, try again later. */
- if (down_trylock(&hdaps_sem)) {
+ if (!mutex_trylock(&hdaps_mutex)) {
mod_timer(&hdaps_timer,jiffies + HDAPS_POLL_PERIOD);
return;
}
@@ -340,7 +341,7 @@
mod_timer(&hdaps_timer, jiffies + HDAPS_POLL_PERIOD);
out:
- up(&hdaps_sem);
+ mutex_unlock(&hdaps_mutex);
}
@@ -420,9 +421,9 @@
struct device_attribute *attr,
const char *buf, size_t count)
{
- down(&hdaps_sem);
+ mutex_lock(&hdaps_mutex);
hdaps_calibrate();
- up(&hdaps_sem);
+ mutex_unlock(&hdaps_mutex);
return count;
}