From: Yuan Wang <yuanx.wang@intel.com>
Date: Wed, 18 May 2022 13:36:33 +0000 (+0800)
Subject: examples/vhost: fix crash when no VMDq
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=6f3d83c7f207d435d960ad881f127e9971a81069;p=dpdk.git

examples/vhost: fix crash when no VMDq

If the VMDq limits is 0, a divide-by-zero error occurs.
This patch replaces throwing a floating point exception with
a normal error message.

Fixes: d19533e86f ("examples/vhost: copy old vhost example")
Cc: stable@dpdk.org

Signed-off-by: Yuan Wang <yuanx.wang@intel.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---

diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index 5bc34b0c52..e7fee5aa1b 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -431,6 +431,10 @@ port_init(uint16_t port)
 
 		return retval;
 	}
+	if (dev_info.max_vmdq_pools == 0) {
+		RTE_LOG(ERR, VHOST_PORT, "Failed to get VMDq info.\n");
+		return -1;
+	}
 
 	rxconf = &dev_info.default_rxconf;
 	txconf = &dev_info.default_txconf;