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[media] cx231xx: fix handling cx231xx_read_i2c_data result

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The function can return negative value.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Andrzej Hajda 2015-09-24 11:00:18 -03:00 committed by Mauro Carvalho Chehab
parent 2788052a8a
commit e54560d963
1 changed files with 2 additions and 1 deletions
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3
drivers/media/usb/cx231xx/cx231xx-video.c
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@ -1114,7 +1114,8 @@ int cx231xx_enum_input(struct file *file, void *priv,
struct cx231xx_fh *fh = priv; struct cx231xx_fh *fh = priv;
struct cx231xx *dev = fh->dev; struct cx231xx *dev = fh->dev;
u32 gen_stat; u32 gen_stat;
unsigned int ret, n; unsigned int n;
int ret;
n = i->index; n = i->index;
if (n >= MAX_CX231XX_INPUT) if (n >= MAX_CX231XX_INPUT)