Use mutex instead of semaphore in struct class.
Signed-off-by: Dave Young <[EMAIL PROTECTED]>
---
drivers/rtc/interface.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -upr linux/drivers/rtc/interface.c linux.new/drivers/rtc/interface.c
--- linux/drivers/rtc/interface.c 2007-12-28 10:41:42.000000000 +0800
+++ linux.new/drivers/rtc/interface.c 2007-12-28 10:43:51.000000000 +0800
@@ -256,7 +256,7 @@ struct rtc_device *rtc_class_open(char *
struct device *dev;
struct rtc_device *rtc = NULL;
- down(&rtc_class->sem);
+ mutex_lock(&rtc_class->mutex);
list_for_each_entry(dev, &rtc_class->devices, node) {
if (strncmp(dev->bus_id, name, BUS_ID_SIZE) == 0) {
dev = get_device(dev);
@@ -272,7 +272,7 @@ struct rtc_device *rtc_class_open(char *
rtc = NULL;
}
}
- up(&rtc_class->sem);
+ mutex_unlock(&rtc_class->mutex);
return rtc;
}
--
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