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usb-serial: Fail instead of crash when chardev is missing

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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Markus Armbruster 2010-05-28 17:03:22 +02:00 • committed by Aurelien Jarno
parent bf298f83c3
commit 81bf96d3d2
1 changed files with 5 additions and 0 deletions
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5
hw/usb-serial.c
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@ -545,6 +545,11 @@ static int usb_serial_initfn(USBDevice *dev)
USBSerialState *s = DO_UPCAST(USBSerialState, dev, dev);
s->dev.speed = USB_SPEED_FULL;
if (!s->cs) {
error_report("Property chardev is required");
return -1;
}
qemu_chr_add_handlers(s->cs, usb_serial_can_read, usb_serial_read,
usb_serial_event, s);
usb_serial_handle_reset(dev);