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

[gfree.wind@vip.163.com]

From: Gao Feng <davidfgao@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 <davidfgao@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