[PATCH] i2c: scx200_acb remove use of lock_kernel
scx200_acb: remove use of lock_kernel()
Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/i2c/busses/scx200_acb.c b/drivers/i2c/busses/scx200_acb.c
index 517a050..02150bb 100644
--- a/drivers/i2c/busses/scx200_acb.c
+++ b/drivers/i2c/busses/scx200_acb.c
@@ -378,6 +378,7 @@
};
static struct scx200_acb_iface *scx200_acb_list;
+static DECLARE_MUTEX(scx200_acb_list_mutex);
static int scx200_acb_probe(struct scx200_acb_iface *iface)
{
@@ -463,10 +464,10 @@
goto errout_release;
}
- lock_kernel();
+ down(&scx200_acb_list_mutex);
iface->next = scx200_acb_list;
scx200_acb_list = iface;
- unlock_kernel();
+ up(&scx200_acb_list_mutex);
return 0;
@@ -509,17 +510,17 @@
{
struct scx200_acb_iface *iface;
- lock_kernel();
+ down(&scx200_acb_list_mutex);
while ((iface = scx200_acb_list) != NULL) {
scx200_acb_list = iface->next;
- unlock_kernel();
+ up(&scx200_acb_list_mutex);
i2c_del_adapter(&iface->adapter);
release_region(iface->base, 8);
kfree(iface);
- lock_kernel();
+ down(&scx200_acb_list_mutex);
}
- unlock_kernel();
+ up(&scx200_acb_list_mutex);
}
module_init(scx200_acb_init);