linux-kernel - [PATCH 4.4 155/162] batman-adv: set .owner to THIS

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Message-Id: <20211124115703.293867014@linuxfoundation.org>
Date:   Wed, 24 Nov 2021 12:57:38 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Taehee Yoo <ap420073@...il.com>,
        Simon Wunderlich <sw@...onwunderlich.de>,
        Sven Eckelmann <sven@...fation.org>
Subject: [PATCH 4.4 155/162] batman-adv: set .owner to THIS_MODULE

From: Taehee Yoo <ap420073@...il.com>

commit 14a2e551faea53d45bc11629a9dac88f88950ca7 upstream.

If THIS_MODULE is not set, the module would be removed while debugfs is
being used.
It eventually makes kernel panic.

Fixes: c6c8fea29769 ("net: Add batman-adv meshing protocol")
Signed-off-by: Taehee Yoo <ap420073@...il.com>
Signed-off-by: Simon Wunderlich <sw@...onwunderlich.de>
[ bp: 4.4 backported: switch to old filename. ]
Signed-off-by: Sven Eckelmann <sven@...fation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 net/batman-adv/debugfs.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -214,6 +214,7 @@ static const struct file_operations bata
 	.read           = batadv_log_read,
 	.poll           = batadv_log_poll,
 	.llseek         = no_llseek,
+	.owner          = THIS_MODULE,
 };
 
 static int batadv_debug_log_setup(struct batadv_priv *bat_priv)