tuner-simple: possible read buffer overflow?

Commit Message

Roel Kluin Oct. 3, 2009, 7:02 p.m. UTC

None

Patch

diff --git a/drivers/media/common/tuners/tuner-simple.c b/drivers/media/common/tuners/tuner-simple.c
index 8abbcc5..e679d5f 100644
--- a/drivers/media/common/tuners/tuner-simple.c
+++ b/drivers/media/common/tuners/tuner-simple.c
@@ -266,7 +266,7 @@  static int simple_config_lookup(struct dvb_frontend *fe,
 			continue;
 		break;
 	}
-	if (i == t_params->count) {
+	if (i == t_params->count && i) {
 		tuner_dbg("frequency out of range (%d > %d)\n",
 			  *frequency, t_params->ranges[i - 1].limit);
 		*frequency = t_params->ranges[--i].limit;