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[media] solo6x10: fix 'dma from stack' warning

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Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2014-02-07 14:51:24 -03:00 committed by Mauro Carvalho Chehab
parent 316d9e84a7
commit 761f9aa23f
1 changed files with 6 additions and 4 deletions
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10
drivers/staging/media/solo6x10/solo6x10-disp.c
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@ -213,19 +213,21 @@ int solo_set_motion_threshold(struct solo_dev *solo_dev, u8 ch, u16 val)
int solo_set_motion_block(struct solo_dev *solo_dev, u8 ch,
const u16 *thresholds)
{
const unsigned size = sizeof(u16) * 64;
u32 off = SOLO_MOT_FLAG_AREA + ch * SOLO_MOT_THRESH_SIZE * 2;
u16 buf[64];
u16 *buf;
int x, y;
int ret = 0;
memset(buf, 0, sizeof(buf));
buf = kzalloc(size, GFP_KERNEL);
for (y = 0; y < SOLO_MOTION_SZ; y++) {
for (x = 0; x < SOLO_MOTION_SZ; x++)
buf[x] = cpu_to_le16(thresholds[y * SOLO_MOTION_SZ + x]);
ret |= solo_p2m_dma(solo_dev, 1, buf,
SOLO_MOTION_EXT_ADDR(solo_dev) + off + y * sizeof(buf),
sizeof(buf), 0, 0);
SOLO_MOTION_EXT_ADDR(solo_dev) + off + y * size,
size, 0, 0);
}
kfree(buf);
return ret;
}