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net/qede: fix possible null pointer dereference

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In function qede_rss_reta_update(), the pointer params returned from
call to function rte_zmalloc() may be NULL and will be dereferenced.
So, should judge if the params is NULL or not.

Fixes: 8b3ee85efe ("net/qede: fix RSS table entries for 100G adapter")
Cc: stable@dpdk.org

Signed-off-by: RongQiang Xie <xie.rongqiang@zte.com.cn>
Acked-by: Harish Patil <harish.patil@cavium.com>
This commit is contained in:
RongQiang Xie 2017-08-24 15:12:33 +08:00 committed by Ferruh Yigit
parent 495ca7888a
commit ef86e67ad5
1 changed files with 4 additions and 0 deletions
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4
drivers/net/qede/qede_ethdev.c
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@ -2012,6 +2012,10 @@ int qede_rss_reta_update(struct rte_eth_dev *eth_dev,
memset(&vport_update_params, 0, sizeof(vport_update_params));
params = rte_zmalloc("qede_rss", sizeof(*params) * edev->num_hwfns,
RTE_CACHE_LINE_SIZE);
if (params == NULL) {
DP_ERR(edev, "failed to allocate memory\n");
return -ENOMEM;
}
for (i = 0; i < reta_size; i++) {
idx = i / RTE_RETA_GROUP_SIZE;