Messages in this thread Patch in this message | | | Date | Thu, 3 Jan 2008 13:59:45 +0800 | From | Dave Young <> | Subject | [PATCH 5/7] rtc : convert semaphore to mutex in struct class |
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Use mutex instead of semaphore in struct class.
Signed-off-by: Dave Young <hidave.darkstar@gmail.com> --- 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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