1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/debug.c b/drivers/net/wireless/ath/debug.c
index a9eb7876dbe..dacfb234f49 100644
--- a/drivers/net/wireless/ath/debug.c
+++ b/drivers/net/wireless/ath/debug.c
@@ -55,7 +55,7 @@ const char *ath_opmode_to_string(enum nl80211_iftype opmode)
         case NL80211_IFTYPE_P2P_GO:
                 return "P2P-GO";
         default:
-                return NULL;
+                return "UNKNOWN";
         }
 }
 EXPORT_SYMBOL(ath_opmode_to_string);