qemu: virtiofs: error out if getting the group or user name fails

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

diff --git a/src/qemu/qemu_virtiofs.c b/src/qemu/qemu_virtiofs.c
index d80cddd3ba977a3be0d033e508904d0be9048a48..78897d81778b09cc1b1f67cfe8db44c2aa28d2e4 100644 (file)
--- a/src/qemu/qemu_virtiofs.c
+++ b/src/qemu/qemu_virtiofs.c
@@ -388,6 +388,9 @@ qemuVirtioFSPrepareIdMap(virDomainFSDef *fs)
     username = virGetUserName(euid);
     groupname = virGetGroupName(egid);
 
+    if (!username || !groupname)
+        return -1;
+
     fs->idmap.uidmap = g_new0(virDomainIdMapEntry, 2);
     fs->idmap.gidmap = g_new0(virDomainIdMapEntry, 2);