[media] ttusb-dec: use swap() in swap_bytes()

Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c b/drivers/media/usb/ttusb-dec/ttusb_dec.c
index 322b53a4f1dde15c319eeefa34cf5b8ed32dcce3..7c3a7c55d9693b920b565f39f3b380b222ce45d7 100644 (file)
--- a/drivers/media/usb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c
@@ -593,14 +593,9 @@ static void ttusb_dec_process_packet(struct ttusb_dec *dec)
 
 static void swap_bytes(u8 *b, int length)
 {
-       u8 c;
-
        length -= length % 2;
-       for (; length; b += 2, length -= 2) {
-               c = *b;
-               *b = *(b + 1);
-               *(b + 1) = c;
-       }
+       for (; length; b += 2, length -= 2)
+               swap(*b, *(b + 1));
 }
 
 static void ttusb_dec_process_urb_frame(struct ttusb_dec *dec, u8 *b,