6.16-stable review patch. If anyone has any objections, please let me know.
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From: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com
[ Upstream commit 9f15701370ec15fbf1f6a1cbbf584b0018d036b5 ]
&dev->mt76.mutex lock is taken using mt792x_mutex_acquire(dev) but not released in one of the error paths, add the unlock to fix it.
Fixes: 5cd0bd815c8a ("wifi: mt76: mt7925: fix NULL deref check in mt7925_change_vif_links") Reported-by: kernel test robot lkp@intel.com Reported-by: Dan Carpenter dan.carpenter@linaro.org Closes: https://lore.kernel.org/r/202503031055.3ZRqxhAl-lkp@intel.com/ Signed-off-by: Harshit Mogalapalli harshit.m.mogalapalli@oracle.com Link: https://patch.msgid.link/20250727140416.1153406-1-harshit.m.mogalapalli@orac... Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt7925/main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/main.c b/drivers/net/wireless/mediatek/mt76/mt7925/main.c index 5b001548dffce..328a06998c7b7 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/main.c @@ -2067,8 +2067,10 @@ mt7925_change_vif_links(struct ieee80211_hw *hw, struct ieee80211_vif *vif, GFP_KERNEL); mlink = devm_kzalloc(dev->mt76.dev, sizeof(*mlink), GFP_KERNEL); - if (!mconf || !mlink) + if (!mconf || !mlink) { + mt792x_mutex_release(dev); return -ENOMEM; + } }
mconfs[link_id] = mconf;