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Commit 5014b5e3 authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Greg Kroah-Hartman
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usb: ftdi-elan: Convert "mutex" to semaphore 



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: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent a1df4e45

drivers/usb/misc/ftdi-elan.c

+1 −1
Original line number Diff line number Diff line
@@ -2769,7 +2769,7 @@ 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);

	sema_init(&ftdi->sw_lock, 1);

        ftdi->udev = usb_get_dev(interface_to_usbdev(interface));

        ftdi->interface = interface;

        mutex_init(&ftdi->u132_lock);