linux-kernel - [PATCH 4.11 04/84] mac80211: free netdev on dev_alloc

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Message-Id: <20170703133403.171170319@linuxfoundation.org>
Date:   Mon,  3 Jul 2017 15:34:44 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Johannes Berg <johannes.berg@...el.com>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.11 04/84] mac80211: free netdev on dev_alloc_name() error

4.11-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Johannes Berg <johannes.berg@...el.com>


[ Upstream commit c7a61cba71fd151cc7d9ebe53a090e0e61eeebf3 ]

The change to remove free_netdev() from ieee80211_if_free()
erroneously didn't add the necessary free_netdev() for when
ieee80211_if_free() is called directly in one place, rather
than as the priv_destructor. Add the missing call.

Fixes: cf124db566e6 ("net: Fix inconsistent teardown and release of private netdev state.")
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/mac80211/iface.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1810,6 +1810,7 @@ int ieee80211_if_add(struct ieee80211_lo
 		ret = dev_alloc_name(ndev, ndev->name);
 		if (ret < 0) {
 			ieee80211_if_free(ndev);
+			free_netdev(ndev);
 			return ret;
 		}