From: Christian Brauner <christian.brauner@ubuntu.com>
Date: Sat, 17 Feb 2018 18:41:04 +0000 (+0100)
Subject: cgfsng: cgfsng_escape()
X-Git-Tag: lxc-3.0.0.beta1~22^2~39
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=11c238679785520014dfe4fab772d98f9dd8e501;p=thirdparty%2Flxc.git

cgfsng: cgfsng_escape()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---

diff --git a/src/lxc/cgroups/cgfsng.c b/src/lxc/cgroups/cgfsng.c
index 7c2b1d7ab..81b340b66 100644
--- a/src/lxc/cgroups/cgfsng.c
+++ b/src/lxc/cgroups/cgfsng.c
@@ -2318,7 +2318,7 @@ static int cgfsng_nrtasks(void *hdata)
 	return count;
 }
 
-/* Only root needs to escape to the cgroup of its init */
+/* Only root needs to escape to the cgroup of its init. */
 static bool cgfsng_escape()
 {
 	int i;
@@ -2327,11 +2327,15 @@ static bool cgfsng_escape()
 		return true;
 
 	for (i = 0; hierarchies[i]; i++) {
-		char *fullpath = must_make_path(hierarchies[i]->mountpoint,
-						hierarchies[i]->base_cgroup,
-						"cgroup.procs", NULL);
-		if (lxc_write_to_file(fullpath, "0", 2, false) != 0) {
-			SYSERROR("Failed to escape to %s", fullpath);
+		int ret;
+		char *fullpath;
+
+		fullpath = must_make_path(hierarchies[i]->mountpoint,
+					  hierarchies[i]->base_cgroup,
+					  "cgroup.procs", NULL);
+		ret = lxc_write_to_file(fullpath, "0", 2, false);
+		if (ret != 0) {
+			SYSERROR("Failed to escape to cgroup \"%s\"", fullpath);
 			free(fullpath);
 			return false;
 		}