Re: [PATCH v2] chardev/tcp: fix error message double free error

[Markus Armbruster]

Paolo Bonzini <pbonzini@redhat.com> writes:

> On 01/07/20 09:06, Markus Armbruster wrote:
>> lichun <lichun@ruijie.com.cn> writes:
>> 
>>> Signed-off-by: lichun <lichun@ruijie.com.cn>
>>> ---
>>>  chardev/char-socket.c | 3 ++-
>>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/chardev/char-socket.c b/chardev/char-socket.c
>>> index afebeec5c3..569d54c144 100644
>>> --- a/chardev/char-socket.c
>>> +++ b/chardev/char-socket.c
>>> @@ -142,6 +142,8 @@ static void check_report_connect_error(Chardev *chr,
>>>                            "Unable to connect character device %s: ",
>>>                            chr->label);
>>>          s->connect_err_reported = true;
>>> +    } else {
>>> +        error_free(err);
>>>      }
>>>      qemu_chr_socket_restart_timer(chr);
>>>  }
>>> @@ -1086,7 +1088,6 @@ static void qemu_chr_socket_connected(QIOTask *task, 
>>> void *opaque)
>>>      if (qio_task_propagate_error(task, &err)) {
>>>          tcp_chr_change_state(s, TCP_CHARDEV_STATE_DISCONNECTED);
>>>          check_report_connect_error(chr, err);
>>> -        error_free(err);
>>>          goto cleanup;
>>>      }
>> 
>> Reviewed-by: Markus Armbruster <armbru@redhat.com>
>> 
>> and queued, thanks!
>> 
>
> Can you please add a note to the commit message?
>
>     Errors are already freed by error_report_err, so we only need to call
>     error_free when that function is not called.
>     
> and Cc qemu-stable?  Or I can queue it too since it's chardev stuff.

Done in my tree, expect PR later today.