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

[Xiaoyun Li]

This patch adds return value checking for fseek function to fix
error handling issue found by coverity scan.

Coverity issue: 344996
Fixes: c5eebf85badc ("examples/ntb: add example for NTB")
Cc: sta...@dpdk.org

Signed-off-by: Xiaoyun Li <xiaoyun...@intel.com>
---
 examples/ntb/ntb_fwd.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/examples/ntb/ntb_fwd.c b/examples/ntb/ntb_fwd.c
index c169f01a3..671b13f50 100644
--- a/examples/ntb/ntb_fwd.c
+++ b/examples/ntb/ntb_fwd.c
@@ -107,6 +107,7 @@ cmd_sendfile_parsed(void *parsed_result,
        uint8_t *buff;
        uint32_t val;
        FILE *file;
+       int status;
 
        if (!rte_rawdevs[dev_id].started) {
                printf("Device needs to be up first. Try later.\n");
@@ -125,9 +126,17 @@ cmd_sendfile_parsed(void *parsed_result,
                return;
        }
 
-       fseek(file, 0, SEEK_END);
+       status = fseek(file, 0, SEEK_END);
+       if (status) {
+               printf("Fail to get file size.\n");
+               return;
+       }
        size = ftell(file);
-       fseek(file, 0, SEEK_SET);
+       status = fseek(file, 0, SEEK_SET);
+       if (status) {
+               printf("Fail to get file size.\n");
+               return;
+       }
 
        /**
         * No FIFO now. Only test memory. Limit sending file
-- 
2.17.1