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

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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>
This commit is contained in:
Fabian Frederick 2015-06-10 13:32:33 -03:00 committed by Mauro Carvalho Chehab
parent cfcffe397f
commit fd7524294c
1 changed files with 1 additions and 4 deletions
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5
drivers/media/v4l2-core/v4l2-dv-timings.c
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@ -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);