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| author | Gonglei <arei.gonglei@huawei.com> | 2014-09-19 15:25:21 +0800 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2014-09-23 12:51:08 +0200 |
| commit | 7334d6507a7578152bb7addcef84e4cf634814a4 (patch) | |
| tree | 4b5684fc19a7bff2d977c48cb0a2ecc751142780 /hw | |
| parent | 594a53607e5bd4a2b7555a7a2908d2c406fea9aa (diff) | |
| download | qemu-7334d6507a7578152bb7addcef84e4cf634814a4.zip qemu-7334d6507a7578152bb7addcef84e4cf634814a4.tar.gz qemu-7334d6507a7578152bb7addcef84e4cf634814a4.tar.bz2 | |
usb-serial: only check speed once at realize time
Whatever the chardev is open or not, we should assure
the speed is matched each other. So, call usb_check_attach()
check speed. And then pass &error_abort at all calls to
usb_device_attach().
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/usb/dev-serial.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c index 3784f4a..1cee450 100644 --- a/hw/usb/dev-serial.c +++ b/hw/usb/dev-serial.c @@ -451,7 +451,6 @@ static void usb_serial_read(void *opaque, const uint8_t *buf, int size) static void usb_serial_event(void *opaque, int event) { USBSerialState *s = opaque; - Error *local_err = NULL; switch (event) { case CHR_EVENT_BREAK: @@ -461,11 +460,7 @@ static void usb_serial_event(void *opaque, int event) break; case CHR_EVENT_OPENED: if (!s->dev.attached) { - usb_device_attach(&s->dev, &local_err); - if (local_err) { - qerror_report_err(local_err); - error_free(local_err); - } + usb_device_attach(&s->dev, &error_abort); } break; case CHR_EVENT_CLOSED: @@ -479,6 +474,7 @@ static void usb_serial_event(void *opaque, int event) static void usb_serial_realize(USBDevice *dev, Error **errp) { USBSerialState *s = DO_UPCAST(USBSerialState, dev, dev); + Error *local_err = NULL; usb_desc_create_serial(dev); usb_desc_init(dev); @@ -489,12 +485,18 @@ static void usb_serial_realize(USBDevice *dev, Error **errp) return; } + usb_check_attach(dev, &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + qemu_chr_add_handlers(s->cs, usb_serial_can_read, usb_serial_read, usb_serial_event, s); usb_serial_handle_reset(dev); if (s->cs->be_open && !dev->attached) { - usb_device_attach(dev, errp); + usb_device_attach(dev, &error_abort); } } |