1 files changed, 3 insertions, 0 deletions

diff --git a/net/wireless/util.c b/net/wireless/util.c
index a329429bfdd8..be75a3a0424e 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1013,6 +1013,9 @@ int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
 {
         int i, j;
 
+        if (!sband)
+                return -EINVAL;
+
         if (n_rates == 0 || n_rates > NL80211_MAX_SUPP_RATES)
                 return -EINVAL;