From: Dan Carpenter <dan.carpenter@oracle.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Cc: John Allen <jallen@linux.vnet.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH net-next] ibmvnic: Potential NULL dereference in clean_one_tx_pool()
Date: Fri, 23 Mar 2018 14:36:15 +0300 [thread overview]
Message-ID: <20180323113615.GA28518@mwanda> (raw)
There is an && vs || typo here, which potentially leads to a NULL
dereference.
Fixes: e9e1e97884b7 ("ibmvnic: Update TX pool cleaning routine")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 5632c030811b..0389a7a52152 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1135,7 +1135,7 @@ static void clean_one_tx_pool(struct ibmvnic_adapter *adapter,
u64 tx_entries;
int i;
- if (!tx_pool && !tx_pool->tx_buff)
+ if (!tx_pool || !tx_pool->tx_buff)
return;
tx_entries = tx_pool->num_buffers;
next reply other threads:[~2018-03-23 11:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-23 11:36 Dan Carpenter [this message]
2018-03-23 15:06 ` [PATCH net-next] ibmvnic: Potential NULL dereference in clean_one_tx_pool() Thomas Falcon
2018-03-26 1:14 ` David Miller
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