[PATCH 2/2] qemu: Do not erase input device from namespace if duplicate

[Kristina Hanicova <khanicov@xxxxxxxxxx>]

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1780508

Signed-off-by: Kristina Hanicova <khanicov@xxxxxxxxxx>
---
 src/qemu/qemu_hotplug.c   |  3 +--
 src/qemu/qemu_namespace.c | 10 ++++++++--
 src/qemu/qemu_namespace.h |  3 ++-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index d2a354d026..7002623924 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -3225,9 +3225,8 @@ qemuDomainAttachInputDevice(virQEMUDriver *driver,
     if (qemuBuildInputDevStr(&devstr, vm->def, input, priv->qemuCaps) < 0)
         goto cleanup;
 
-    if (qemuDomainNamespaceSetupInput(vm, input) < 0)
+    if (qemuDomainNamespaceSetupInput(vm, input, &teardowndevice) < 0)
         goto cleanup;
-    teardowndevice = true;
 
     if (qemuSetupInputCgroup(vm, input) < 0)
         goto cleanup;
diff --git a/src/qemu/qemu_namespace.c b/src/qemu/qemu_namespace.c
index 154968acbd..22bdda229a 100644
--- a/src/qemu/qemu_namespace.c
+++ b/src/qemu/qemu_namespace.c
@@ -1600,9 +1600,11 @@ qemuDomainNamespaceTeardownRNG(virDomainObj *vm,
 
 int
 qemuDomainNamespaceSetupInput(virDomainObj *vm,
-                              virDomainInputDef *input)
+                              virDomainInputDef *input,
+                              bool *created)
 {
     g_autoptr(virGSListString) paths = NULL;
+    int ret = 0;
 
     if (!qemuDomainNamespaceEnabled(vm, QEMU_DOMAIN_NS_MOUNT))
         return 0;
@@ -1610,8 +1612,12 @@ qemuDomainNamespaceSetupInput(virDomainObj *vm,
     if (qemuDomainSetupInput(input, &paths) < 0)
         return -1;
 
-    if (qemuNamespaceMknodPaths(vm, paths) < 0)
+    if ((ret = qemuNamespaceMknodPaths(vm, paths)) < 0)
         return -1;
+
+    if (ret == 0)
+        *created = true;
+
     return 0;
 }
 
diff --git a/src/qemu/qemu_namespace.h b/src/qemu/qemu_namespace.h
index 771d7873ef..5d9af123a9 100644
--- a/src/qemu/qemu_namespace.h
+++ b/src/qemu/qemu_namespace.h
@@ -80,7 +80,8 @@ int qemuDomainNamespaceTeardownRNG(virDomainObj *vm,
                                    virDomainRNGDef *rng);
 
 int qemuDomainNamespaceSetupInput(virDomainObj *vm,
-                                  virDomainInputDef *input);
+                                  virDomainInputDef *input,
+                                  bool *created);
 
 int qemuDomainNamespaceTeardownInput(virDomainObj *vm,
                                      virDomainInputDef *input);
-- 
2.31.1