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char: make chr_fe_deinit() optionaly delete backend

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This simplifies removing a backend for a frontend user (no need to
retrieve the associated driver and separate delete call etc).

NB: many frontends have questionable handling of ending a chardev. They
should probably delete the backend to prevent broken reusage.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Marc-André Lureau 2017-01-27 00:49:13 +04:00
parent a9b1ca38c2
commit 1ce2610c10
16 changed files with 34 additions and 58 deletions
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4
hw/usb/redirect.c
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@ -1419,10 +1419,8 @@ static void usbredir_cleanup_device_queues(USBRedirDevice *dev)
static void usbredir_unrealize(USBDevice *udev, Error **errp)
{
USBRedirDevice *dev = USB_REDIRECT(udev);
Chardev *chr = qemu_chr_fe_get_driver(&dev->cs);
qemu_chr_fe_deinit(&dev->cs);
object_unparent(OBJECT(chr));
qemu_chr_fe_deinit(&dev->cs, true);
/* Note must be done after qemu_chr_close, as that causes a close event */
qemu_bh_delete(dev->chardev_close_bh);