wifi: rtw89: unlock on error path in rtw89_ops_unassign_vif_chanctx()

[ Upstream commit ac4f4e5a203927e555107db6e781e85f241720e1 ]

We need to call mutex_unlock() on this error path.

Fixes: aad0394e7a02 ("wifi: rtw89: tweak driver architecture for impending MLO support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/8683a712-ffc2-466b-8382-0b264719f8ef@stanley.mountain
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/net/wireless/realtek/rtw89/mac80211.c

@@ -1373,6 +1373,7 @@ static void rtw89_ops_unassign_vif_chanctx(struct ieee80211_hw *hw,
 
 	rtwvif_link = rtwvif->links[link_conf->link_id];
 	if (unlikely(!rtwvif_link)) {
+		mutex_unlock(&rtwdev->mutex);
 		rtw89_err(rtwdev,
 			  "%s: rtwvif link (link_id %u) is not active\n",
 			  __func__, link_conf->link_id);