utils: fix parsing of cgroup with : in the name

a cgroup can have ':' in its name.  Make sure the parser doesn't split
more than 3 fields and leave untouched the ':' in the cgroup name.

commit 6ee5f740a4ecb70636b888e78b02065ee984636c introduced the issue.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/utils/utils_supported.go b/utils/utils_supported.go
index 201ddb57b..4258e6d7a 100644
--- a/utils/utils_supported.go
+++ b/utils/utils_supported.go
@@ -64,7 +64,7 @@ func getCgroupProcess(procFile string) (string, error) {
 	cgroup := "/"
 	for scanner.Scan() {
 		line := scanner.Text()
-		parts := strings.Split(line, ":")
+		parts := strings.SplitN(line, ":", 3)
 		if len(parts) != 3 {
 			return "", errors.Errorf("cannot parse cgroup line %q", line)
 		}
@@ -116,7 +116,7 @@ func MoveUnderCgroupSubtree(subtree string) error {
 	scanner := bufio.NewScanner(f)
 	for scanner.Scan() {
 		line := scanner.Text()
-		parts := strings.Split(line, ":")
+		parts := strings.SplitN(line, ":", 3)
 		if len(parts) != 3 {
 			return errors.Errorf("cannot parse cgroup line %q", line)
 		}