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authorJohannes Berg <johannes.berg@intel.com>2020-01-13 12:53:59 +0100
committerJohannes Berg <johannes.berg@intel.com>2020-01-15 09:53:24 +0100
commit24953de0a5e31dcca7e82c8a3c79abc2dfe8fb6e (patch)
treee982f4ab3d8e7de4eec2ae3bcc4379ba5bcb0eb8 /net
parentdf16737d438f534d0cc9948c7c5158f1986c5c87 (diff)
cfg80211: check for set_wiphy_params
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@syzkaller.appspotmail.com Reported-by: syzbot+34b582cf32c1db008f8e@syzkaller.appspotmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200113125358.ac07f276efff.Ibd85ee1b12e47b9efb00a2adc5cd3fac50da791a@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/wireless/rdev-ops.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 663c0d3127a4..e0d34f796d0b 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);

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