usb-ftdi-elan-Convert-mutex-to-semaphore.patch

From c4815c524eace32d89b81469a71f47f293f44278 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Sat, 25 Jul 2009 23:43:03 +0200
Subject: [PATCH] usb: ftdi-elan: Convert "mutex" to semaphore

commit c4815c524eace32d89b81469a71f47f293f44278 in tip.

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@linutronix.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 9d0675e..d20cb67 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -2766,7 +2766,7 @@ static int ftdi_elan_probe(struct usb_interface *interface,
         ftdi->sequence_num = ++ftdi_instances;
         mutex_unlock(&ftdi_module_lock);
         ftdi_elan_init_kref(ftdi);
-        init_MUTEX(&ftdi->sw_lock);
+	semaphore_init(&ftdi->sw_lock);
         ftdi->udev = usb_get_dev(interface_to_usbdev(interface));
         ftdi->interface = interface;
         mutex_init(&ftdi->u132_lock);
-- 
1.7.1.1