If interface does not existk, when nl80211_set_power_save is called, (eg.
module has been unloaded) it has been causing kernel panic. Added new
goto target to avoid crash if get_rdev_dev_by_info_ifindex does not
return dev and rdev pointers.
Signed-off-by: Teemu Paasikivi <[email protected]>
---
net/wireless/nl80211.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f15b1af..4ff827e 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4990,7 +4990,7 @@ static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
if (err)
- goto unlock_rdev;
+ goto unlock_rtnl;
wdev = dev->ieee80211_ptr;
@@ -5014,6 +5014,7 @@ static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
unlock_rdev:
cfg80211_unlock_rdev(rdev);
dev_put(dev);
+unlock_rtnl:
rtnl_unlock();
out:
--
1.5.6.3