[dpdk-dev] [PATCH] examples/flow_classify: fix fseek error handling

[Bernard Iremonger]

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.iremon...@intel.com>
---
 examples/flow_classify/flow_classify.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/examples/flow_classify/flow_classify.c 
b/examples/flow_classify/flow_classify.c
index e4cabdb..766f1dd 100644
--- a/examples/flow_classify/flow_classify.c
+++ b/examples/flow_classify/flow_classify.c
@@ -657,13 +657,17 @@ static __attribute__((noreturn)) void
        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) {
-- 
1.9.1