[dpdk-dev] [PATCH] examples/vhost_blk: fix unchecked return value

[wangyunjian]

From: Yunjian Wang <wangyunj...@huawei.com>

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: sta...@dpdk.org

Signed-off-by: Yunjian Wang <wangyunj...@huawei.com>
---
 examples/vhost_blk/vhost_blk.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/examples/vhost_blk/vhost_blk.c b/examples/vhost_blk/vhost_blk.c
index f4c59437a..8f5d61a58 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)
-- 
2.23.0