diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2020-01-13 12:53:59 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-23 08:20:35 +0100 |
| commit | 162b3b1a0b10e5cefc4c8b83f766b54ab2e43b39 (patch) | |
| tree | c5c3d09d8b058212eeed61b688372d4378e60bfd /net | |
| parent | bde97eaa4b3686910a066b024595e1ffac202b1a (diff) | |
cfg80211: check for set_wiphy_params
commit 24953de0a5e31dcca7e82c8a3c79abc2dfe8fb6e upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/rdev-ops.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h index 0c06240d25af..249919bdfc64 100644 --- a/net/wireless/rdev-ops.h +++ b/net/wireless/rdev-ops.h @@ -537,6 +537,10 @@ 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); |