[dpdk-dev] [PATCH] eal: Add the check for null peer pointer in mp request handler

[gfree . wind]

From: Gao Feng <davidf...@tencent.com>

Add the check for null peer pointer like the bundle pointer in the mp request
handler. They should follow same style. And add some logs for nomem cases.

Signed-off-by: Gao Feng <davidf...@tencent.com>
---
 lib/librte_eal/common/hotplug_mp.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/lib/librte_eal/common/hotplug_mp.c 
b/lib/librte_eal/common/hotplug_mp.c
index 070e2e0..0d2996f 100644
--- a/lib/librte_eal/common/hotplug_mp.c
+++ b/lib/librte_eal/common/hotplug_mp.c
@@ -200,6 +200,11 @@ static int cmp_dev_name(const struct rte_device *dev, 
const void *_name)
         * when it is ready.
         */
        bundle->peer = strdup(peer);
+       if (bundle->peer == NULL) {
+               free(bundle);
+               RTE_LOG(ERR, EAL, "not enough memory\n");
+               return send_response_to_secondary(req, -ENOMEM, peer);
+       }
 
        /**
         * We are at IPC callback thread, sync IPC is not allowed due to
@@ -311,6 +316,7 @@ static void __handle_primary_request(void *param)
 
        bundle = calloc(1, sizeof(*bundle));
        if (bundle == NULL) {
+               RTE_LOG(ERR, EAL, "not enough memory\n");
                resp->result = -ENOMEM;
                ret = rte_mp_reply(&mp_resp, peer);
                if (ret)
@@ -325,6 +331,15 @@ static void __handle_primary_request(void *param)
         * when it is ready.
         */
        bundle->peer = (void *)strdup(peer);
+       if (bundle->peer == NULL) {
+               RTE_LOG(ERR, EAL, "not enough memory\n");
+               free(bundle);
+               resp->result = -ENOMEM;
+               ret = rte_mp_reply(&mp_resp, peer);
+               if (ret)
+                       RTE_LOG(ERR, EAL, "failed to send reply to primary 
request\n");
+               return ret;
+       }
 
        /**
         * We are at IPC callback thread, sync IPC is not allowed due to
-- 
1.8.3.1