This function return value is invariant since 18f3771, so change
its type and remove all dependent checks.

Found by Linux Verification Center (linuxtesting.org) with Svace.

Reported-by: Pavel Nekrasov <p.nekrasov@fobos-nt.ru>
Signed-off-by: Alexander Kuznetsov <kuznetsovam@altlinux.org>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
---
 src/hypervisor/virhostdev.c | 6 ++----
 src/util/virpci.c           | 4 +---
 src/util/virpci.h           | 6 +++---
 3 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/src/hypervisor/virhostdev.c b/src/hypervisor/virhostdev.c
index db94a2e056..f8b5ab86e1 100644
--- a/src/hypervisor/virhostdev.c
+++ b/src/hypervisor/virhostdev.c
@@ -1131,8 +1131,7 @@ virHostdevUpdateActivePCIDevices(virHostdevManager *mgr,
         if (!actual)
             continue;
 
-        if (virPCIDeviceSetUsedBy(actual, drv_name, dom_name) < 0)
-            goto cleanup;
+        virPCIDeviceSetUsedBy(actual, drv_name, dom_name);
 
         /* Setup the original states for the PCI device */
         virPCIDeviceSetUnbindFromStub(actual, virBitmapIsBitSet(orig, VIR_DOMAIN_HOSTDEV_PCI_ORIGSTATE_UNBIND));
@@ -2480,8 +2479,7 @@ virHostdevUpdateActiveNVMeDevices(virHostdevManager *hostdev_mgr,
 
         /* We must restore some attributes that were lost on daemon restart. */
         virPCIDeviceSetUnbindFromStub(actual, true);
-        if (virPCIDeviceSetUsedBy(actual, drv_name, dom_name) < 0)
-            goto rollback;
+        virPCIDeviceSetUsedBy(actual, drv_name, dom_name);
 
         if (virPCIDeviceListAddCopy(hostdev_mgr->activePCIHostdevs, actual) < 0)
             goto rollback;
diff --git a/src/util/virpci.c b/src/util/virpci.c
index 289c0b330b..90617e69c6 100644
--- a/src/util/virpci.c
+++ b/src/util/virpci.c
@@ -2049,7 +2049,7 @@ virPCIDeviceSetReprobe(virPCIDevice *dev, bool reprobe)
     dev->reprobe = reprobe;
 }
 
-int
+void
 virPCIDeviceSetUsedBy(virPCIDevice *dev,
                       const char *drv_name,
                       const char *dom_name)
@@ -2058,8 +2058,6 @@ virPCIDeviceSetUsedBy(virPCIDevice *dev,
     VIR_FREE(dev->used_by_domname);
     dev->used_by_drvname = g_strdup(drv_name);
     dev->used_by_domname = g_strdup(dom_name);
-
-    return 0;
 }
 
 void
diff --git a/src/util/virpci.h b/src/util/virpci.h
index ba5e0ae6f1..4409864057 100644
--- a/src/util/virpci.h
+++ b/src/util/virpci.h
@@ -136,9 +136,9 @@ void virPCIDeviceSetStubDriverName(virPCIDevice *dev,
                                    const char *driverName);
 const char *virPCIDeviceGetStubDriverName(virPCIDevice *dev);
 virPCIDeviceAddress *virPCIDeviceGetAddress(virPCIDevice *dev);
-int virPCIDeviceSetUsedBy(virPCIDevice *dev,
-                          const char *drv_name,
-                          const char *dom_name);
+void virPCIDeviceSetUsedBy(virPCIDevice *dev,
+                           const char *drv_name,
+                           const char *dom_name);
 void virPCIDeviceGetUsedBy(virPCIDevice *dev,
                            const char **drv_name,
                            const char **dom_name);
-- 
2.42.2