[PATCH] qemu_domain: Ignore all but SCSI hostdevs in qemuDomainDeviceHostdevDefPostParseRestoreBackendAlias()

[Michal Privoznik]

When retiring QEMU_CAPS_BLOCKDEV_HOSTDEV_SCSI capability the
commit removed a bit too much. Previously, all other devices than
VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI were ignored in
qemuDomainDeviceHostdevDefPostParseRestoreBackendAlias(). But the
commit in question removed not only the capability check but also
this return early statement. Restore it back.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2129239
Fixes: dc8dbb27d40968c9d9bfad2c6181bccc20c0e44e
Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/qemu/qemu_domain.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index d7ef23f493..ee024d17cd 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -5596,6 +5596,10 @@ qemuDomainDeviceHostdevDefPostParseRestoreBackendAlias(virDomainHostdevDef *host
     if (!(parseFlags & VIR_DOMAIN_DEF_PARSE_STATUS))
         return 0;
 
+    if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
+        hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)
+        return 0;
+
     switch ((virDomainHostdevSCSIProtocolType) scsisrc->protocol) {
     case VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_NONE:
         if (!scsisrc->u.host.src)
-- 
2.35.1