wifi: mac80211: Fix possible integer promotion issue

Fix a possible integer promotion issue in mac80211 in ieee80211_ml_epcs()

Fixes: de86c5f60839 ("wifi: mac80211: Add support for EPCS configuration")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Link: https://patch.msgid.link/20250214074721.1613549-1-ilan.peer@intel.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4e8f0a5f6251ebe5d237fe683050100e7dd26d2a..23d85a1abbc59c30753000a40f6faaac4227b598 100644 (file)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -10704,7 +10704,7 @@ static void ieee80211_ml_epcs(struct ieee80211_sub_if_data *sdata,
                                                  elems->ml_epcs_len,
                                                  scratch, scratch_len,
                                                  IEEE80211_MLE_SUBELEM_FRAGMENT);
-               if (len < sizeof(control))
+               if (len < (ssize_t)sizeof(control))
                        continue;
 
                pos = scratch + sizeof(control);