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wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change

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BugLink: https://bugs.launchpad.net/bugs/2086138

[ Upstream commit 479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3 ]

When disabling wifi mt7921_ipv6_addr_change() is called as a notifier.
At this point mvif->phy is already NULL so we cannot use it here.

Signed-off-by: Bert Karwatzki <spasswolf@web.de>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://patch.msgid.link/20240812104542.80760-1-spasswolf@web.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Bert Karwatzki
2024-08-12 12:45:41 +02:00
committed by Mehmet Basaran
parent eaf1c85331
commit 793d28e070
1 changed files with 1 additions and 1 deletions
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drivers/net/wireless/mediatek/mt76/mt7921/main.c
+1 -1
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@@ -1139,7 +1139,7 @@ static void mt7921_ipv6_addr_change(struct ieee80211_hw *hw,
struct inet6_dev *idev)
{
struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv;
struct mt792x_dev *dev = mvif->phy->dev;
struct mt792x_dev *dev = mt792x_hw_dev(hw);
struct inet6_ifaddr *ifa;
struct in6_addr ns_addrs[IEEE80211_BSS_ARP_ADDR_LIST_LEN];
struct sk_buff *skb;