[PATCH 3/4] qemu_passt: Report error when getting passt PID failed

[Michal Privoznik <mprivozn@redhat.com>]

If qemuPasstGetPid() fails, or the passt's PID is -1 then
qemuPasstSetupCgroup() returns early without any error message
set. Report an appropriate error.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
---
 src/qemu/qemu_passt.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_passt.c b/src/qemu/qemu_passt.c
index 0f09bf3db8..78830fdc26 100644
--- a/src/qemu/qemu_passt.c
+++ b/src/qemu/qemu_passt.c
@@ -125,8 +125,11 @@ qemuPasstSetupCgroup(virDomainObj *vm,
 {
     pid_t pid = (pid_t) -1;
 
-    if (qemuPasstGetPid(vm, net, &pid) < 0 || pid <= 0)
+    if (qemuPasstGetPid(vm, net, &pid) < 0 || pid <= 0) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                       _("Could not get process ID of passt"));
         return -1;
+    }
 
     return virCgroupAddProcess(cgroup, pid);
 }
-- 
@@ -125,8 +125,11 @@ qemuPasstSetupCgroup(virDomainObj *vm,
 {
     pid_t pid = (pid_t) -1;
 
-    if (qemuPasstGetPid(vm, net, &pid) < 0 || pid <= 0)
+    if (qemuPasstGetPid(vm, net, &pid) < 0 || pid <= 0) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                       _("Could not get process ID of passt"));
         return -1;
+    }
 
     return virCgroupAddProcess(cgroup, pid);
 }
-- 
2.39.1