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qemu: hotplug: wait for the tray to eject only for drives with a tray

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Use the detected tray presence flag to trigger the tray waiting code
only if the given storage device in qemu reports to have a tray.

This is necessary as the floppy device lost it's tray as of qemu commit:

commit abb3e55b5b718d6392441f56ba0729a62105ac56
Author: Max Reitz <mreitz@redhat.com>
Date:   Fri Jan 29 20:49:12 2016 +0100

    Revert "hw/block/fdc: Implement tray status"

(cherry picked from commit 72a7ff6b50)
This commit is contained in:
Peter Krempa 2016-05-19 15:30:12 +02:00 committed by Cole Robinson
parent 2c1bff5acc
commit 5befc944a9
1 changed files with 4 additions and 2 deletions
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6
src/qemu/qemu_hotplug.c
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@ -209,6 +209,7 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
int ret = -1, rc;
char *driveAlias = NULL;
qemuDomainObjPrivatePtr priv = vm->privateData;
qemuDomainDiskPrivatePtr diskPriv = QEMU_DOMAIN_DISK_PRIVATE(disk);
const char *format = NULL;
char *sourcestr = NULL;
@ -237,8 +238,9 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;
/* If the tray change event is supported wait for it to open. */
if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_TRAY_MOVED)) {
/* If the tray is present and tray change event is supported wait for it to open. */
if (diskPriv->tray &&
virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_TRAY_MOVED)) {
if (qemuHotplugWaitForTrayEject(driver, vm, disk, driveAlias, force) < 0)
goto error;
} else {