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authorEric Blake <eblake@redhat.com>2015-10-14 16:30:25 -0600
committerMarkus Armbruster <armbru@redhat.com>2015-10-15 08:37:11 +0200
commitd08ac81a459258ce20b3184fa9325c6c1350ac9e (patch)
tree66c6c0716522439034e1914a9f76900cffc92ba2
parentc49d3411faae8ffaab8f7e5db47405a008411c10 (diff)
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qapi: Fix regression with '-netdev help'
Commit e36c714e causes 'qemu -netdev help' to dump core, because the call to visit_end_union() is no longer conditional on whether *obj was allocated. Reported by Marc-André Lureau <marcandre.lureau@gmail.com> Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1444861825-19256-1-git-send-email-eblake@redhat.com> [Commit message tweaked to say 'help' instead of '?'] Signed-off-by: Markus Armbruster <armbru@redhat.com>
-rw-r--r--scripts/qapi-visit.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 4f97781348..d7f51ee250 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -301,7 +301,9 @@ void visit_type_%(c_name)s(Visitor *v, %(c_name)s **obj, const char *name, Error
out_obj:
error_propagate(errp, err);
err = NULL;
- visit_end_union(v, !!(*obj)->data, &err);
+ if (*obj) {
+ visit_end_union(v, !!(*obj)->data, &err);
+ }
error_propagate(errp, err);
err = NULL;
visit_end_struct(v, &err);