[PATCH v2 10/10] app/test-dma-perf: fix parsing of DMA address

[Stephen Hemminger <stephen@networkplumber.org>]

There was useless loop when looking at the DMA address.
It looks like it was meant to skip whitespace before
calling strtok.

Good time to replace strtok with strtok_r as well.

Link: https://pvs-studio.com/en/blog/posts/cpp/1179/

Fixes: 623dc9364dc6 ("app/dma-perf: introduce DMA performance test")
Cc: cheng1.jiang@intel.com
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 app/test-dma-perf/main.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/app/test-dma-perf/main.c b/app/test-dma-perf/main.c
index 18219918cc..dccb0a3541 100644
--- a/app/test-dma-perf/main.c
+++ b/app/test-dma-perf/main.c
@@ -217,27 +217,27 @@ parse_lcore_dma(struct test_configure *test_case, const char *value)
 	struct lcore_dma_map_t *lcore_dma_map;
 	char *input, *addrs;
 	char *ptrs[2];
-	char *start, *end, *substr;
+	char *start, *end, *substr, *saveptr;
 	uint16_t lcore_id;
 	int ret = 0;
 
 	if (test_case == NULL || value == NULL)
 		return -1;
 
-	input = strndup(value, strlen(value) + 1);
+	input = strdup(value);
 	if (input == NULL)
 		return -1;
-	addrs = input;
 
-	while (*addrs == '\0')
-		addrs++;
+	addrs = input;
+	while (isspace(*addrs))
+		++addrs;
 	if (*addrs == '\0') {
 		fprintf(stderr, "No input DMA addresses\n");
 		ret = -1;
 		goto out;
 	}
 
-	substr = strtok(addrs, ",");
+	substr = strtok_r(addrs, ",", &saveptr);
 	if (substr == NULL) {
 		fprintf(stderr, "No input DMA address\n");
 		ret = -1;
-- 
2.45.2