[patch 13/30] usb: ftdi-elan: Convert "mutex" to semaphore

[Thomas Gleixner]

The "mutex" ftdi->sw_lock is used as a lock and a completion. Convert
it to a real semaphore which allows both.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx

---
 drivers/usb/misc/ftdi-elan.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/drivers/usb/misc/ftdi-elan.c
===================================================================
--- linux-2.6.orig/drivers/usb/misc/ftdi-elan.c
+++ linux-2.6/drivers/usb/misc/ftdi-elan.c
@@ -2769,7 +2769,7 @@ static int ftdi_elan_probe(struct usb_in
         ftdi->sequence_num = ++ftdi_instances;
         mutex_unlock(&ftdi_module_lock);
         ftdi_elan_init_kref(ftdi);
-        init_MUTEX(&ftdi->sw_lock);
+	sema_init(&ftdi->sw_lock, 1);
         ftdi->udev = usb_get_dev(interface_to_usbdev(interface));
         ftdi->interface = interface;
         mutex_init(&ftdi->u132_lock);


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