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media: saa7134: use swap() to make code cleaner 

Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
opencoding it.

Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Signed-off-by: Yang Guang <yang.guang5@zte.com.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Yang Guang 2021-12-20 08:46:46 +01:00 committed by Mauro Carvalho Chehab
parent f0c2ba1ed4
commit d8772818e2
1 changed files with 3 additions and 6 deletions
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9
drivers/media/pci/saa7134/saa7134-video.c
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@ -823,7 +823,7 @@ static int buffer_activate(struct saa7134_dev *dev,
{
struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
unsigned long base,control,bpl;
unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
unsigned long bpl_uv, lines_uv, base2, base3; /* planar */
video_dbg("buffer_activate buf=%p\n", buf);
buf->top_seen = 0;
@ -868,11 +868,8 @@ static int buffer_activate(struct saa7134_dev *dev,
lines_uv = dev->height >> dev->fmt->vshift;
base2 = base + bpl * dev->height;
base3 = base2 + bpl_uv * lines_uv;
if (dev->fmt->uvswap) {
tmp = base2;
base2 = base3;
base3 = tmp;
}
if (dev->fmt->uvswap)
swap(base2, base3);
video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
bpl_uv,lines_uv,base2,base3);
if (V4L2_FIELD_HAS_BOTH(dev->field)) {