1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/wireless/cisco/airo.c b/drivers/net/wireless/cisco/airo.c
index 4bd9e2b97e86..833b46c5ed42 100644
--- a/drivers/net/wireless/cisco/airo.c
+++ b/drivers/net/wireless/cisco/airo.c
@@ -5794,7 +5794,7 @@ static int airo_set_freq(struct net_device *dev,
                 fwrq->m = ieee80211_frequency_to_channel(f);
         }
         /* Setting by channel number */
-        if((fwrq->m > 1000) || (fwrq->e > 0))
+        if (fwrq->m < 0 || fwrq->m > 1000 || fwrq->e > 0)
                 rc = -EOPNOTSUPP;
         else {
                 int channel = fwrq->m;