tree: git://linuxtv.org/media_tree.git master
head: 9409945c7ff7ba39727df8ede2551bd22e76b58b
commit: 761f9aa23f2ac187aa1bed58215f09f3c8456295 [452/499] [media] solo6x10: fix 'dma from stack' warning
drivers/staging/media/solo6x10/solo6x10-disp.c:225 solo_set_motion_block() error: potential null dereference 'buf'. (kzalloc returns null)
vim +/buf +225 drivers/staging/media/solo6x10/solo6x10-disp.c
dcae5dacb drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-25 209 (ch * SOLO_MOT_THRESH_SIZE * 2),
dcae5dacb drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-25 210 val, SOLO_MOT_THRESH_SIZE);
dcae5dacb drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-25 211 }
dcae5dacb drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-25 212
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 213 int solo_set_motion_block(struct solo_dev *solo_dev, u8 ch,
4063a3c78 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-06-10 214 const u16 *thresholds)
dcae5dacb drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-25 215 {
761f9aa23 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-02-07 216 const unsigned size = sizeof(u16) * 64;
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 217 u32 off = SOLO_MOT_FLAG_AREA + ch * SOLO_MOT_THRESH_SIZE * 2;
761f9aa23 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-02-07 218 u16 *buf;
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 219 int x, y;
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 220 int ret = 0;
dcae5dacb drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-25 221
761f9aa23 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-02-07 222 buf = kzalloc(size, GFP_KERNEL);
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 223 for (y = 0; y < SOLO_MOTION_SZ; y++) {
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 224 for (x = 0; x < SOLO_MOTION_SZ; x++)
4063a3c78 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-06-10 @225 buf[x] = cpu_to_le16(thresholds[y * SOLO_MOTION_SZ + x]);
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 226 ret |= solo_p2m_dma(solo_dev, 1, buf,
761f9aa23 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-02-07 227 SOLO_MOTION_EXT_ADDR(solo_dev) + off + y * size,
761f9aa23 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-02-07 228 size, 0, 0);
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 229 }
761f9aa23 drivers/staging/media/solo6x10/solo6x10-disp.c Hans Verkuil 2014-02-07 230 kfree(buf);
f5df0b7ff drivers/staging/media/solo6x10/disp.c Hans Verkuil 2013-03-18 231 return ret;
faa4fd2a0 drivers/staging/solo6x10/solo6010-disp.c Ben Collins 2010-06-17 232 }
faa4fd2a0 drivers/staging/solo6x10/solo6010-disp.c Ben Collins 2010-06-17 233
:::::: The code at line 225 was first introduced by commit
:::::: 4063a3c781071e46aaf08e79c99ea822cbc0f089 [media] solo6x10: implement the new motion detection controls
:::::: TO: Hans Verkuil <hans.verkuil@xxxxxxxxx>
:::::: CC: Mauro Carvalho Chehab <m.chehab@xxxxxxxxxxx>
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