app/crypto-perf: check memory allocation

[ upstream commit 37c0359 ]

Return value of a function 'rte_zmalloc' is dereferenced without
checking, and it may call segmentation fault.

This patch fixed it.

Fixes: f8be178 ("app/crypto-perf: introduce performance test application")

Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>

app/test-crypto-perf/cperf_options_parsing.c

@@ -495,6 +495,12 @@ parse_test_name(struct cperf_options *opts,
 {
 	char *test_name = (char *) rte_zmalloc(NULL,
 		sizeof(char) * (strlen(arg) + 3), 0);
+	if (test_name == NULL) {
+		RTE_LOG(ERR, USER1, "Failed to rte zmalloc with size: %zu\n",
+			strlen(arg) + 3);
+		return -1;
+	}
+
 	snprintf(test_name, strlen(arg) + 3, "[%s]", arg);
 	opts->test_name = test_name;