eal: check peer allocation in multi-process request

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 <davidfgao@tencent.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>

diff --git a/lib/librte_eal/common/hotplug_mp.c b/lib/librte_eal/common/hotplug_mp.c
index 9d610a8..4052a5c 100644 (file)
--- a/lib/librte_eal/common/hotplug_mp.c
+++ b/lib/librte_eal/common/hotplug_mp.c
@@ -200,6 +200,11 @@ handle_secondary_request(const struct rte_mp_msg *msg, const void *peer)
         * 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
@@ -313,6 +318,7 @@ handle_primary_request(const struct rte_mp_msg *msg, const void *peer)
 
        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)
@@ -327,6 +333,15 @@ handle_primary_request(const struct rte_mp_msg *msg, const void *peer)
         * 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