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scx200_acb: Use mutex instead of semaphore 

The scx200_acb driver use a semaphore as mutex.  Use the mutex API
instead of the (binary) semaphore.

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Matthias Kaehlcke 2007-07-12 14:12:28 +02:00 committed by Jean Delvare
parent d75d53cd57
commit 9d9c01ceff
1 changed files with 7 additions and 7 deletions
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14
drivers/i2c/busses/scx200_acb.c
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@ -388,7 +388,7 @@ static const struct i2c_algorithm scx200_acb_algorithm = {
};
static struct scx200_acb_iface *scx200_acb_list;
static DECLARE_MUTEX(scx200_acb_list_mutex);
static DEFINE_MUTEX(scx200_acb_list_mutex);
static __init int scx200_acb_probe(struct scx200_acb_iface *iface)
{
@ -472,10 +472,10 @@ static int __init scx200_acb_create(struct scx200_acb_iface *iface)
return -ENODEV;
}
down(&scx200_acb_list_mutex);
mutex_lock(&scx200_acb_list_mutex);
iface->next = scx200_acb_list;
scx200_acb_list = iface;
up(&scx200_acb_list_mutex);
mutex_unlock(&scx200_acb_list_mutex);
return 0;
}
@ -633,10 +633,10 @@ static void __exit scx200_acb_cleanup(void)
{
struct scx200_acb_iface *iface;
down(&scx200_acb_list_mutex);
mutex_lock(&scx200_acb_list_mutex);
while ((iface = scx200_acb_list) != NULL) {
scx200_acb_list = iface->next;
up(&scx200_acb_list_mutex);
mutex_unlock(&scx200_acb_list_mutex);
i2c_del_adapter(&iface->adapter);
@ -648,9 +648,9 @@ static void __exit scx200_acb_cleanup(void)
release_region(iface->base, 8);
kfree(iface);
down(&scx200_acb_list_mutex);
mutex_lock(&scx200_acb_list_mutex);
}
up(&scx200_acb_list_mutex);
mutex_unlock(&scx200_acb_list_mutex);
}
module_init(scx200_acb_init);