From: Yunjian Wang <wangyunjian@huawei.com>
Date: Fri, 25 Sep 2020 11:22:06 +0000 (+0800)
Subject: examples/vhost_blk: check driver start failure
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=dc9e658013d9c2be798f9ff43b8cd2c63c844f17;p=dpdk.git

examples/vhost_blk: check driver start failure

This checks the return value from the function
rte_vhost_driver_start.

Coverity issue: 362027
Fixes: c19beb3f38cd ("examples/vhost_blk: introduce vhost storage sample")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
---

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index f4c59437a0..8f5d61a589 100644
--- a/examples/vhost_blk/vhost_blk.c
+++ b/examples/vhost_blk/vhost_blk.c
@@ -877,7 +877,11 @@ int main(int argc, char *argv[])
 
 	signal(SIGINT, signal_handler);
 
-	rte_vhost_driver_start(dev_pathname);
+	ret = rte_vhost_driver_start(dev_pathname);
+	if (ret < 0) {
+		fprintf(stderr, "Failed to start vhost driver.\n");
+		return -1;
+	}
 
 	/* loop for exit the application */
 	while (1)