[libvirt] [PATCH 6/8] qemu: Resolve Coverity FORWARD_NULL

[John Ferlan]

Coverity points out it was possible to have a zero return from
qemuBuildRNGBackendProps thus not filling in 'props' and then
causing a NULL dereference on the next call.

Signed-off-by: John Ferlan <jferlan at redhat.com>
---
 src/qemu/qemu_command.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index c32d8c6..68844fa 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -6464,7 +6464,9 @@ qemuBuildRNGBackendProps(virDomainRNGDefPtr rng,
         break;
 
     case VIR_DOMAIN_RNG_BACKEND_LAST:
-        break;
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("unknown rng-random backend"));
+        goto cleanup;
     }
 
     ret = 0;
-- 
2.1.0