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authorHans Verkuil <hans.verkuil@cisco.com>2014-02-07 14:51:24 -0300
committerMauro Carvalho Chehab <m.chehab@samsung.com>2014-07-17 11:57:31 -0300
commit761f9aa23f2ac187aa1bed58215f09f3c8456295 (patch)
tree0af5914b300cbff7dc88203dd56e6050fe14da0a /drivers/staging/media
parent316d9e84a72069e04e483de0d5934c1d75f6a44c (diff)
downloadop-kernel-dev-761f9aa23f2ac187aa1bed58215f09f3c8456295.zip
op-kernel-dev-761f9aa23f2ac187aa1bed58215f09f3c8456295.tar.gz
[media] solo6x10: fix 'dma from stack' warning
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/staging/media')
-rw-r--r--drivers/staging/media/solo6x10/solo6x10-disp.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/staging/media/solo6x10/solo6x10-disp.c b/drivers/staging/media/solo6x10/solo6x10-disp.c
index 44d98b8..b529a96 100644
--- a/drivers/staging/media/solo6x10/solo6x10-disp.c
+++ b/drivers/staging/media/solo6x10/solo6x10-disp.c
@@ -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;
}
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