Re: [Qemu-devel] [PATCH 14/14] usb: Proper error propagation for usb_device_attach errors

[Kevin Wolf <kwolf@redhat.com>]

Am 31.05.2011 11:51, schrieb Hans de Goede:
> Hi,
> 
> On 05/31/2011 11:42 AM, Michael Tokarev wrote:
>> 31.05.2011 13:35, Hans de Goede wrote:
>>> ---
>>>   hw/usb-bus.c |   23 ++++++++++++-----------
>>>   hw/usb-msd.c |    5 +++--
>>>   usb-linux.c  |    6 +++++-
>>>   3 files changed, 20 insertions(+), 14 deletions(-)
>>>
>>> diff --git a/hw/usb-bus.c b/hw/usb-bus.c
>>> index 0a49921..2ae2678 100644
>>> --- a/hw/usb-bus.c
>>> +++ b/hw/usb-bus.c
>>
>>>       if (dev->attached) {
>>> -        fprintf(stderr, "Warning: tried to attach usb device %s twice\n",
>>> +        fprintf(stderr, "Error: tried to attach usb device %s twice\n",
>>>                   dev->product_desc);
>>
>> qemu_error() maybe, while we're at it?
>> Here and in a few other places.
> 
> That does not seem to exist, do you perhaps mean error_printf() ?

error_report() is what you should use, so that messages go to the
monitor if the function is called from a monitor command. error_printf()
is used by it internally, but usually isn't used directly.

Kevin