From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Fri, 18 Sep 2015 18:46:23 +0000 (-0400)
Subject: Fix: shm-path: handling of snprintf return value
X-Git-Tag: v2.7.0-rc2~5
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=51a9615b7598293b22451ad55eb8daa8d3e3408a;p=lttng-tools.git

Fix: shm-path: handling of snprintf return value

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/common/ust-consumer/ust-consumer.c b/src/common/ust-consumer/ust-consumer.c
index d45707b76..08e6ee0d8 100644
--- a/src/common/ust-consumer/ust-consumer.c
+++ b/src/common/ust-consumer/ust-consumer.c
@@ -254,8 +254,8 @@ int get_stream_shm_path(char *stream_shm_path, const char *shm_path, int cpu)
 	strncpy(stream_shm_path, shm_path, PATH_MAX);
 	stream_shm_path[PATH_MAX - 1] = '\0';
 	ret = snprintf(cpu_nr, UINT_MAX_STR_LEN, "%u", cpu);
-	if (ret != 1) {
-		ret = -1;
+	if (ret < 0) {
+		PERROR("snprintf");
 		goto end;
 	}
 	strncat(stream_shm_path, cpu_nr,