1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c
index d0d1c350025a..a876ca8d69ef 100644
--- a/drivers/net/wireless/ath/ath5k/phy.c
+++ b/drivers/net/wireless/ath/ath5k/phy.c
@@ -1897,6 +1897,9 @@ ath5k_get_linear_pcdac_min(const u8 *stepL, const u8 *stepR,
         s16 min_pwrL, min_pwrR;
         s16 pwr_i;
 
+        if (WARN_ON(stepL[0] == stepL[1] || stepR[0] == stepR[1]))
+                return 0;
+
         if (pwrL[0] == pwrL[1])
                 min_pwrL = pwrL[0];
         else {