From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Marek Lindner Date: Sat, 29 Oct 2011 10:06:45 +0200 Message-Id: <1319875606-7794-3-git-send-email-lindner_marek@yahoo.de> In-Reply-To: <1319875606-7794-1-git-send-email-lindner_marek@yahoo.de> References: <1319875606-7794-1-git-send-email-lindner_marek@yahoo.de> Subject: [B.A.T.M.A.N.] [PATCH 2/3] batman-adv: add sanity check when removing global tts Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: davem@davemloft.net Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, Simon Wunderlich , Marek Lindner , stable@kernel.org From: Simon Wunderlich After removing the batman-adv module, the hash may be already gone when tt_global_del_orig() tries to clean the hash. This patch adds a sanity check to avoid this. Signed-off-by: Simon Wunderlich Tested-by: Alexey Fisher Signed-off-by: Marek Lindner --- net/batman-adv/translation-table.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index abf05cb..c7aafc7 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -722,6 +722,9 @@ void tt_global_del_orig(struct bat_priv *bat_priv, struct hlist_head *head; spinlock_t *list_lock; /* protects write access to the hash lists */ + if (!hash) + return; + for (i = 0; i < hash->size; i++) { head = &hash->table[i]; list_lock = &hash->list_locks[i]; -- 1.7.5.4