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strings.Split may return an empty string on no match

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* This fixes an index out of range crash if cgroup memory is not
  enabled.
This commit is contained in:
Harley Laue 2013-05-02 14:44:41 -05:00
parent ff5e238de9
commit 4bc8ef42d4
1 changed files with 1 additions and 1 deletions
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2
utils.go
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@ -445,7 +445,7 @@ func FindCgroupMountpoint(cgroupType string) (string, error) {
// cgroup /sys/fs/cgroup/devices cgroup rw,relatime,devices 0 0 // cgroup /sys/fs/cgroup/devices cgroup rw,relatime,devices 0 0
for _, line := range strings.Split(string(output), "\n") { for _, line := range strings.Split(string(output), "\n") {
parts := strings.Split(line, " ") parts := strings.Split(line, " ")
if parts[2] == "cgroup" { if len(parts) > 1 && parts[2] == "cgroup" {
for _, opt := range strings.Split(parts[3], ",") { for _, opt := range strings.Split(parts[3], ",") {
if opt == cgroupType { if opt == cgroupType {
return parts[1], nil return parts[1], nil