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[media] cx18: avoid going past input/audio array 

As reported by smatch:
	drivers/media/pci/cx18/cx18-driver.c:807 cx18_init_struct2() error: buffer overflow 'cx->card->video_inputs' 6 <= 6

That happens because nof_inputs and nof_audio_inputs can be initialized
as CX18_CARD_MAX_VIDEO_INPUTS, instead of CX18_CARD_MAX_VIDEO_INPUTS - 1.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Mauro Carvalho Chehab 2015-04-28 09:50:36 -03:00
parent 81b7d14e32
commit 2f9e682d05
1 changed files with 2 additions and 2 deletions
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4
drivers/media/pci/cx18/cx18-driver.c
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@ -786,11 +786,11 @@ static void cx18_init_struct2(struct cx18 *cx)
{
int i;
for (i = 0; i < CX18_CARD_MAX_VIDEO_INPUTS; i++)
for (i = 0; i < CX18_CARD_MAX_VIDEO_INPUTS - 1; i++)
if (cx->card->video_inputs[i].video_type == 0)
break;
cx->nof_inputs = i;
for (i = 0; i < CX18_CARD_MAX_AUDIO_INPUTS; i++)
for (i = 0; i < CX18_CARD_MAX_AUDIO_INPUTS - 1; i++)
if (cx->card->audio_inputs[i].audio_type == 0)
break;
cx->nof_audio_inputs = i;