nl80211: always check nla_put* return values

A few instances were found where we didn't check them, add the
missing checks even though they'll probably never trigger as
the message should be large enough here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 60c8a74..887c4c1 100644 (file)
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -9453,8 +9453,10 @@ static int nl80211_send_wowlan_nd(struct sk_buff *msg,
        if (!freqs)
                return -ENOBUFS;
 
-       for (i = 0; i < req->n_channels; i++)
-               nla_put_u32(msg, i, req->channels[i]->center_freq);
+       for (i = 0; i < req->n_channels; i++) {
+               if (nla_put_u32(msg, i, req->channels[i]->center_freq))
+                       return -ENOBUFS;
+       }
 
        nla_nest_end(msg, freqs);
 
@@ -9468,9 +9470,10 @@ static int nl80211_send_wowlan_nd(struct sk_buff *msg,
                        if (!match)
                                return -ENOBUFS;
 
-                       nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
-                               req->match_sets[i].ssid.ssid_len,
-                               req->match_sets[i].ssid.ssid);
+                       if (nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
+                                   req->match_sets[i].ssid.ssid_len,
+                                   req->match_sets[i].ssid.ssid))
+                               return -ENOBUFS;
                        nla_nest_end(msg, match);
                }
                nla_nest_end(msg, matches);