From: Luciano Coelho <luciano.coelho@xxxxxxxxx>
Error codes returned by cfg80211_chandef_dfs_required() are ignored
when trying to join an IBSS. Fix this by printing an error and
returning.
Signed-off-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
---
net/mac80211/ibss.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 9c84b75..b558468 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -283,6 +283,11 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
&chandef);
+ if (err < 0) {
+ sdata_info(sdata,
+ "Failed to join IBSS, invalid chandef\n");
+ return;
+ }
if (err > 0) {
if (!ifibss->userspace_handles_dfs) {
sdata_info(sdata,
--
1.8.5.3
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