In the CA_GET_SLOT_INFO ioctl, we only check whether "num" is too large,
but we don't check if it's negative.
drivers/media/dvb/ttpci/av7110_ca.c
278 ca_slot_info_t *info=(ca_slot_info_t *)parg;
279
280 if (info->num > 1)
281 return -EINVAL;
282 av7110->ci_slot[info->num].num = info->num;
Let's just make it unsigned.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
---
Compile tested.
diff --git a/include/linux/dvb/ca.h b/include/linux/dvb/ca.h
index c18537f..647015e 100644
--- a/include/linux/dvb/ca.h
+++ b/include/linux/dvb/ca.h
@@ -27,7 +27,7 @@
/* slot interface types and info */
typedef struct ca_slot_info {
- int num; /* slot number */
+ unsigned int num; /* slot number */
int type; /* CA interface this slot supports */
#define CA_CI 1 /* CI high level interface */
--
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