Re: [PATCH 02/14] hw/usb: Use error_setg_file_open() for a better error message

[Markus Armbruster <armbru@redhat.com>]

"Dr. David Alan Gilbert" <dave@treblig.org> writes:

> * Markus Armbruster (armbru@redhat.com) wrote:
>> The error message changes from
>> 
>>     open FILENAME failed
>> 
>> to
>> 
>>     Could not open 'FILENAME': REASON
>> 
>> where REASON is the value of strerror(errno).
>> 
>> Signed-off-by: Markus Armbruster <armbru@redhat.com>
>> ---
>>  hw/usb/bus.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/hw/usb/bus.c b/hw/usb/bus.c
>> index 8dd2ce415e..47d42ca3c1 100644
>> --- a/hw/usb/bus.c
>> +++ b/hw/usb/bus.c
>> @@ -262,7 +262,7 @@ static void usb_qdev_realize(DeviceState *qdev, Error **errp)
>>          int fd = qemu_open_old(dev->pcap_filename,
>>                                 O_CREAT | O_WRONLY | O_TRUNC | O_BINARY, 0666);
>>          if (fd < 0) {
>> -            error_setg(errp, "open %s failed", dev->pcap_filename);
>> +            error_setg_file_open(errp, errno, dev->pcap_filename);
>
> Wouldn't it be easier to flip it to use qemu_open() ?

Mechanical change; I missed the obvious :)

I'll give it a try, along with the call in ui/ui-qmp-cmd.c [PATCH 09].
Thanks!

>
> Dave
>
>>              usb_qdev_unrealize(qdev);
>>              return;
>>          }
>> -- 
>> 2.49.0
>>