[dpdk-dev] [PATCH] eal/trace: fix coverity issues

[Sunil Kumar Kori]

Pointer was being dereferenced without NULL checking.

Coverity issue: 357768

Fixes: 8c8066ea6a7b ("trace: add trace mode configuration parameter")

Signed-off-by: Sunil Kumar Kori <skori at marvell.com>
---
 lib/librte_eal/common/eal_common_trace_utils.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/common/eal_common_trace_utils.c b/lib/librte_eal/common/eal_common_trace_utils.c
index fce8892c3..119e97119 100644
--- a/lib/librte_eal/common/eal_common_trace_utils.c
+++ b/lib/librte_eal/common/eal_common_trace_utils.c
@@ -227,15 +227,16 @@ int
 eal_trace_mode_args_save(const char *optarg)
 {
 	struct trace *trace = trace_obj_get();
-	size_t len = strlen(optarg);
 	unsigned long tmp;
 	char *pattern;
+	size_t len;
 
 	if (optarg == NULL) {
 		trace_err("no optarg is passed");
 		return -EINVAL;
 	}
 
+	len = strlen(optarg);
 	if (len == 0) {
 		trace_err("value is not provided with option");
 		return -EINVAL;
-- 
2.17.1