[libvirt] [PATCH] Resuming running domain raise error message

[Sławek Kapłoński]

When user tries to resume already running domain (Qemu or LXC)
there is VIR_ERR_OPERATION_INVALID error raised now with
message that domain is already running.

Closes-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1009008
---
 src/lxc/lxc_driver.c   | 8 +++++++-
 src/qemu/qemu_driver.c | 4 ++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 466e67f..4a0165a 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -3156,6 +3156,7 @@ static int lxcDomainResume(virDomainPtr dom)
     virDomainObjPtr vm;
     virObjectEventPtr event = NULL;
     int ret = -1;
+    int state;
     virLXCDomainObjPrivatePtr priv;
     virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
 
@@ -3176,7 +3177,12 @@ static int lxcDomainResume(virDomainPtr dom)
         goto endjob;
     }
 
-    if (virDomainObjGetState(vm, NULL) == VIR_DOMAIN_PAUSED) {
+    state = virDomainObjGetState(vm, NULL);
+    if (state == VIR_DOMAIN_RUNNING) {
+        virReportError(VIR_ERR_OPERATION_INVALID,
+                       "%s", _("domain is already running"));
+        goto endjob;
+    } else if (state == VIR_DOMAIN_PAUSED) {
         if (virCgroupSetFreezerState(priv->cgroup, "THAWED") < 0) {
             virReportError(VIR_ERR_OPERATION_FAILED,
                            "%s", _("Resume operation failed"));
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 93ea5e2..c99186a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1919,6 +1919,10 @@ static int qemuDomainResume(virDomainPtr dom)
         virReportError(VIR_ERR_OPERATION_INVALID,
                        "%s", _("domain is pmsuspended"));
         goto endjob;
+    } else if (state == VIR_DOMAIN_RUNNING) {
+        virReportError(VIR_ERR_OPERATION_INVALID,
+                       "%s", _("domain is already running"));
+        goto endjob;
     } else if ((state == VIR_DOMAIN_CRASHED &&
                 reason == VIR_DOMAIN_CRASHED_PANICKED) ||
                state == VIR_DOMAIN_PAUSED) {
-- 
2.10.1