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qapi: Don't pass NULL to printf in string input visitor 

Make sure the error message for visit_type_uint64() gracefully
handles a NULL 'name' when called from the top level or a list
context, as not all the world behaves like glibc in allowing
NULL through a printf-family %s.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1461879932-9020-21-git-send-email-eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Eric Blake 2016-04-28 15:45:28 -06:00 committed by Markus Armbruster
parent 736f85d5db
commit 0a40bdab0d
1 changed files with 1 additions and 1 deletions
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2
qapi/string-input-visitor.c
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@ -222,7 +222,7 @@ static void parse_type_int64(Visitor *v, const char *name, int64_t *obj,
return;
error:
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name,
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, name ? name : "null",
"an int64 value or range");
}