block: Don't call bdrv_eject() if the tray state didn't change

It's not needed. Besides we can then assume that bdrv_eject() is
only called when there's a tray state change, which is useful to
the DEVICE_TRAY_MOVED event (going to be added in a future
commit).

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Luiz Capitulino 2012-02-17 11:05:21 -02:00
parent f36f394952
commit d88b1819dd
2 changed files with 10 additions and 4 deletions

View File

@ -883,9 +883,12 @@ static void cmd_start_stop_unit(IDEState *s, uint8_t* buf)
ide_atapi_cmd_error(s, sense, ASC_MEDIA_REMOVAL_PREVENTED);
return;
}
if (s->tray_open != !start) {
bdrv_eject(s->bs, !start);
s->tray_open = !start;
}
}
ide_atapi_cmd_ok(s);
}

View File

@ -1050,9 +1050,12 @@ static int scsi_disk_emulate_start_stop(SCSIDiskReq *r)
: SENSE_CODE(NOT_READY_REMOVAL_PREVENTED));
return -1;
}
if (s->tray_open != !start) {
bdrv_eject(s->qdev.conf.bs, !start);
s->tray_open = !start;
}
}
return 0;
}