X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=tests%2Ftest_ust_data_trace.c;h=924cfe4b97f1fde75af52f075969280072eab932;hp=6acd7a0d083adba911d171e9c2d69e4fd10ada19;hb=986122407a4279879094329dbfc19187f4a65faf;hpb=441c16a7f0bbab56a5e783059d0cddab68544a9a

diff --git a/tests/test_ust_data_trace.c b/tests/test_ust_data_trace.c
index 6acd7a0d0..924cfe4b9 100644
--- a/tests/test_ust_data_trace.c
+++ b/tests/test_ust_data_trace.c
@@ -35,6 +35,8 @@
 /* This path will NEVER be created in this test */
 #define PATH1 "/tmp/.test-junk-lttng"
 
+#define RANDOM_STRING_LEN	11
+
 /* For lttngerr.h */
 int opt_quiet = 1;
 int opt_verbose = 0;
@@ -43,25 +45,26 @@ static const char alphanum[] =
 	"0123456789"
 	"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
 	"abcdefghijklmnopqrstuvwxyz";
+static char random_string[RANDOM_STRING_LEN];
 
 static struct ltt_ust_session *usess;
 static struct lttng_domain dom;
 
 /*
  * Return random string of 10 characters.
+ * Not thread-safe.
  */
 static char *get_random_string(void)
 {
 	int i;
-	char *str = malloc(11);
 
-	for (i = 0; i < 10; i++) {
-		str[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
+	for (i = 0; i < RANDOM_STRING_LEN - 1; i++) {
+		random_string[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
 	}
 
-	str[10] = '\0';
+	random_string[RANDOM_STRING_LEN - 1] = '\0';
 
-	return str;
+	return random_string;
 }
 
 static void create_one_ust_session(void)