[PATCH] wifi: rtw89: wow: Add unlock mutex before to return

[Alessandro Zanni]

In error handling code for "ieee80211_gtk_rekey_add failed", release
the mutex before to return.

Found with Coccinelle static analisys tool,
script: https://coccinelle.gitlabpages.inria.fr/website/rules/mut.cocci

Signed-off-by: Alessandro Zanni <alessandro.zanni87@xxxxxxxxx>
---
 drivers/net/wireless/realtek/rtw89/wow.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/realtek/rtw89/wow.c b/drivers/net/wireless/realtek/rtw89/wow.c
index 86e24e07780d..8045acb27cf9 100644
--- a/drivers/net/wireless/realtek/rtw89/wow.c
+++ b/drivers/net/wireless/realtek/rtw89/wow.c
@@ -624,6 +624,7 @@ static struct ieee80211_key_conf *rtw89_wow_gtk_rekey(struct rtw89_dev *rtwdev,
 	kfree(rekey_conf);
 	if (IS_ERR(key)) {
 		rtw89_err(rtwdev, "ieee80211_gtk_rekey_add failed\n");
+		mutex_unlock(&rtwdev->mutex);
 		return NULL;
 	}
 
-- 
2.43.0