From: Johannes Berg <johannes.berg@xxxxxxxxx>
Check if set_wiphy_params is assigned and return an error if not,
some drivers (e.g. virt_wifi where syzbot reported it) don't have
it.
Reported-by: syzbot+e8a797964a4180eb57d5@xxxxxxxxxxxxxxxxxxxxxxxxx
Reported-by: syzbot+34b582cf32c1db008f8e@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
net/wireless/rdev-ops.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index e853a4fe6f97..3dd9515c836b 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -538,6 +538,10 @@ static inline int
rdev_set_wiphy_params(struct cfg80211_registered_device *rdev, u32 changed)
{
int ret;
+
+ if (!rdev->ops->set_wiphy_params)
+ return -EOPNOTSUPP;
+
trace_rdev_set_wiphy_params(&rdev->wiphy, changed);
ret = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
trace_rdev_return_int(&rdev->wiphy, ret);
--
2.24.1
