From: Bernard Iremonger <bernard.iremonger@intel.com>
Date: Wed, 1 Nov 2017 12:10:29 +0000 (+0000)
Subject: examples/flow_classify: fix fseek error handling
X-Git-Tag: spdx-start~930
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=c044ffaa37fb77de36b26188ba6e8f63ce00cc7c

examples/flow_classify: fix fseek error handling

Check return value of fseek and exit if non zero.

Coverity issue: 143435
Fixes: bab16ddaf2c1 ("examples/flow_classify: add sample application")

Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
Acked-by: Jasvinder Singh <jasvinder.singh@intel.com>
---

diff --git a/examples/flow_classify/flow_classify.c b/examples/flow_classify/flow_classify.c
index e4cabdb254..766f1dd0e1 100644
--- a/examples/flow_classify/flow_classify.c
+++ b/examples/flow_classify/flow_classify.c
@@ -657,13 +657,17 @@ add_rules(const char *rule_path, struct flow_classifier *cls_app)
 	unsigned int i = 0;
 	unsigned int total_num = 0;
 	struct rte_eth_ntuple_filter ntuple_filter;
+	int ret;
 
 	fh = fopen(rule_path, "rb");
 	if (fh == NULL)
-		rte_exit(EXIT_FAILURE, "%s: Open %s failed\n", __func__,
+		rte_exit(EXIT_FAILURE, "%s: fopen %s failed\n", __func__,
 			rule_path);
 
-	fseek(fh, 0, SEEK_SET);
+	ret = fseek(fh, 0, SEEK_SET);
+	if (ret)
+		rte_exit(EXIT_FAILURE, "%s: fseek %d failed\n", __func__,
+			ret);
 
 	i = 0;
 	while (fgets(buff, LINE_MAX, fh) != NULL) {