[media] v4l2-dv-timings: use swap() in v4l2_calc_aspect_ratio()

Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

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

diff --git a/drivers/media/v4l2-core/v4l2-dv-timings.c b/drivers/media/v4l2-core/v4l2-dv-timings.c
index 04dc71e3ebf0eb3c6eca01cf8f43cc2afc6d8b1e..eefad4f17497592a5231dbaef4b76080141589d2 100644 (file)
--- a/drivers/media/v4l2-core/v4l2-dv-timings.c
+++ b/drivers/media/v4l2-core/v4l2-dv-timings.c
@@ -665,7 +665,6 @@ EXPORT_SYMBOL_GPL(v4l2_detect_gtf);
 struct v4l2_fract v4l2_calc_aspect_ratio(u8 hor_landscape, u8 vert_portrait)
 {
        struct v4l2_fract aspect = { 16, 9 };
-       u32 tmp;
        u8 ratio;
 
        /* Nothing filled in, fallback to 16:9 */
@@ -697,9 +696,7 @@ struct v4l2_fract v4l2_calc_aspect_ratio(u8 hor_landscape, u8 vert_portrait)
        if (hor_landscape)
                return aspect;
        /* The aspect ratio is for portrait, so swap numerator and denominator */
-       tmp = aspect.denominator;
-       aspect.denominator = aspect.numerator;
-       aspect.numerator = tmp;
+       swap(aspect.denominator, aspect.numerator);
        return aspect;
 }
 EXPORT_SYMBOL_GPL(v4l2_calc_aspect_ratio);