USB: remove unnecessary type casting of urb->context

urb->context code cleanup

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 148b7fe..ec88b3b 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -746,7 +746,7 @@
 
 static void ftdi_elan_write_bulk_callback(struct urb *urb)
 {
-        struct usb_ftdi *ftdi = (struct usb_ftdi *)urb->context;
+	struct usb_ftdi *ftdi = urb->context;
 	int status = urb->status;
 
 	if (status && !(status == -ENOENT || status == -ECONNRESET ||