From: Henry Cai <caihe@huawei.com>
Date: Tue, 28 Mar 2017 07:32:20 +0000 (+0800)
Subject: net/cxgbe: fix possible null pointer dereference
X-Git-Tag: spdx-start~3631
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=4a8f7cdd2281c7d904eae5b5ee92e4214e945e51;p=dpdk.git

net/cxgbe: fix possible null pointer dereference

Check return value of malloc.

Fixes: 3bd122eef2cc ("cxgbe/base: add hardware API for Chelsio T5 series adapters")
Cc: stable@dpdk.org

Signed-off-by: Henry Cai <caihe@huawei.com>
Acked-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
---

diff --git a/drivers/net/cxgbe/base/t4_hw.c b/drivers/net/cxgbe/base/t4_hw.c
index c089b068d2..9dca8da16d 100644
--- a/drivers/net/cxgbe/base/t4_hw.c
+++ b/drivers/net/cxgbe/base/t4_hw.c
@@ -359,6 +359,9 @@ int t4_wr_mbox_meat_timeout(struct adapter *adap, int mbox,
 	struct mbox_entry entry;
 	u32 pcie_fw = 0;
 
+	if (!temp)
+		return -ENOMEM;
+
 	if ((size & 15) || size > MBOX_LEN) {
 		free(temp);
 		return -EINVAL;