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[Qemu-devel] [PATCH] QOM: Fail casts for unknown types
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH] QOM: Fail casts for unknown types |
Date: |
Tue, 30 Apr 2013 15:02:16 +0200 |
When we try to cast an object to an unknown type, fail the cast. Today
we would simply run into an assert().
This fixes a bug on qemu-system-s390x for me that gets triggered by the
audio code looking for PCI and ISA buses.
Signed-off-by: Alexander Graf <address@hidden>
---
qom/object.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/qom/object.c b/qom/object.c
index dd53d24..75e6aac 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -453,6 +453,11 @@ ObjectClass *object_class_dynamic_cast(ObjectClass *class,
TypeImpl *type = class->type;
ObjectClass *ret = NULL;
+ if (!target_type) {
+ /* target class type unknown, so fail the cast */
+ return NULL;
+ }
+
if (type->class->interfaces &&
type_is_ancestor(target_type, type_interface)) {
int found = 0;
--
1.6.0.2
- [Qemu-devel] [PATCH] QOM: Fail casts for unknown types,
Alexander Graf <=