[dpdk-dev] [PATCH v1] examples/vhost: fix string split error handling issue

[Cheng Jiang <Cheng1.jiang@intel.com>]

Add checking return value of string split function to fix the
coverity issue.

Fixes: 3a04ecb21420 ("examples/vhost: add async vhost args parsing")
Coverity issue: 363739

Signed-off-by: Cheng Jiang <Cheng1.jiang@intel.com>
---
 examples/vhost/ioat.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/examples/vhost/ioat.c b/examples/vhost/ioat.c
index b2c74f6537..04806c02d7 100644
--- a/examples/vhost/ioat.c
+++ b/examples/vhost/ioat.c
@@ -54,9 +54,14 @@ open_ioat(const char *value)
 	}
 	args_nr = rte_strsplit(substr, strlen(substr),
 			dma_arg, MAX_VHOST_DEVICE, ',');
-	do {
+	while (i < args_nr) {
 		char *arg_temp = dma_arg[i];
-		rte_strsplit(arg_temp, strlen(arg_temp), ptrs, 2, '@');
+		uint8_t sub_nr;
+		sub_nr = rte_strsplit(arg_temp, strlen(arg_temp), ptrs, 2, '@');
+		if (sub_nr != 2) {
+			ret = -1;
+			goto out;
+		}
 
 		start = strstr(ptrs[0], "txd");
 		if (start == NULL) {
@@ -105,7 +110,7 @@ open_ioat(const char *value)
 
 		dma_info->nr++;
 		i++;
-	} while (i < args_nr);
+	}
 out:
 	free(input);
 	return ret;
-- 
2.29.2