[BUG]: Missing error check for os.Stat call during volume publish

[gallacher]

Bug Description

mount.go need to handle all errors for os.Stat call to avoid null pointer panic.

func mkdir(path string) (bool, error) {
st, err := os.Stat(path)
if os.IsNotExist(err) {
/* #nosec G301 */
if err := os.Mkdir(path, 0755); err != nil {
Log.WithField("dir", path).WithError(
err).Error("Unable to create dir")
return false, err
}
Log.WithField("path", path).Debug("created directory")
return true, nil
}
if !st.IsDir() {
return false, fmt.Errorf("existing path is not a directory")
}
return false, nil
}

Logs

N/A

Screenshots

No response

Additional Environment Information

No response

Steps to Reproduce

N/A

Expected Behavior

Fail gracefully

CSM Driver(s)

PowerFlex, PowerScale, PowerMax, Unity, PowerStore

Installation Type

No response

Container Storage Modules Enabled

No response

Container Orchestrator

N/A

Operating System

N/A

[gallacher]

link: 18050, 18049, 18051, 18048, 18052