File pacemaker-fencing-ignore-empty-action.patch of Package pacemaker.14737

commit 7b89ff8b65fcdcad55676578361080eb23edb3e4
Author: Ken Gaillot <kgaillot@redhat.com>
Date:   Thu Apr 6 16:56:52 2017 -0500

    Low: fencing: ignore empty 'action' parameter in fence devices
    
    This makes the fix in 9c0c3d6 more comprehensive.

diff --git a/fencing/commands.c b/fencing/commands.c
index b4e6eb502..deec050f5 100644
--- a/fencing/commands.c
+++ b/fencing/commands.c
@@ -829,7 +829,10 @@ xml2device_params(const char *name, xmlNode *dev)
         crm_warn("%s has '%s' parameter, which should never be specified in configuration",
                  name, STONITH_ATTR_ACTION_OP);
 
-        if (strcmp(value, "reboot") == 0) {
+        if (*value == '\0') {
+            crm_warn("Ignoring empty '%s' parameter", STONITH_ATTR_ACTION_OP);
+
+        } else if (strcmp(value, "reboot") == 0) {
             crm_warn("Ignoring %s='reboot' (see stonith-action cluster property instead)",
                      STONITH_ATTR_ACTION_OP);