rndis_wlan: add missing range check for power_output modparam

Range check for power_output were missing.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c
index ac56f8d9a5e5..18c9931e3267 100644
--- a/drivers/net/wireless/rndis_wlan.c
+++ b/drivers/net/wireless/rndis_wlan.c
@@ -2470,6 +2470,11 @@ static int bcm4320_early_init(struct usbnet *dev)
         else if (priv->param_power_save > 2)
                 priv->param_power_save = 2;
 
+        if (priv->param_power_output < 0)
+                priv->param_power_output = 0;
+        else if (priv->param_power_output > 3)
+                priv->param_power_output = 3;
+
         if (priv->param_roamtrigger < -80)
                 priv->param_roamtrigger = -80;
         else if (priv->param_roamtrigger > -60)