From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 6 Jun 2023 12:49:23 +0000 (+0200)
Subject: wifi: cfg80211: wext: hold wiphy lock in siwgenie
X-Git-Tag: v6.6.7~2536^2~132^2~28
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7d2d0ff49dfdb38ad37baa9a27c0132d5e51a923;p=platform%2Fkernel%2Flinux-starfive.git

wifi: cfg80211: wext: hold wiphy lock in siwgenie

Missed this ioctl since it's in wext-sme.c where we
usually get via a front-level ioctl handler in the
other files, but it should also hold the wiphy lock
to align the locking contract towards the driver.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index f231207..f3eaa33 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -3,7 +3,7 @@
  * cfg80211 wext compat for managed mode.
  *
  * Copyright 2009	Johannes Berg <johannes@sipsolutions.net>
- * Copyright (C) 2009, 2020-2022 Intel Corporation
+ * Copyright (C) 2009, 2020-2023 Intel Corporation
  */
 
 #include <linux/export.h>
@@ -338,6 +338,7 @@ int cfg80211_wext_siwgenie(struct net_device *dev,
 	if (!ie_len)
 		ie = NULL;
 
+	wiphy_lock(wdev->wiphy);
 	wdev_lock(wdev);
 
 	/* no change */
@@ -370,6 +371,7 @@ int cfg80211_wext_siwgenie(struct net_device *dev,
 	err = 0;
  out:
 	wdev_unlock(wdev);
+	wiphy_unlock(wdev->wiphy);
 	return err;
 }