From: Johannes Berg <johannes.berg@xxxxxxxxx>
Simply return NULL in this case, instead of crashing. This can
simplify callers that would otherwise have to check for this
explicitly.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/mac80211/util.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index b864ebc..28858b4 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -752,7 +752,12 @@ EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif);
struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif)
{
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ struct ieee80211_sub_if_data *sdata;
+
+ if (!vif)
+ return NULL;
+
+ sdata = vif_to_sdata(vif);
if (!ieee80211_sdata_running(sdata) ||
!(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
--
2.1.4
--
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