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由 Luiz Capitulino 提交于
Today we generate something like this: int qmp_marshal_input_query_foo(...) ... retval = qmp_query_foo(errp); qmp_marshal_output_query_foo(retval, ret, errp); ... However, if qmp_query_foo() fails 'retval' will probably be NULL, which can cause a segfault as not all visitors check if 'retval' is valid. This commit fixes that by changing the code generator to only call the output marshal if qmp_query_foo() succeeds, like this: retval = qmp_query_foo(errp); if (!error_is_set(errp)) { qmp_marshal_output_query_foo(retval, ret, errp); } Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>
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