diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2017-07-11 14:04:08 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2017-07-18 15:14:36 +0200 |
| commit | 83b4fe0ed5c27dfe181c7c746456ba33e4f7ef2b (patch) | |
| tree | 8e108282a66ad4f35d8cba7c73738303046534c0 | |
| parent | 947231ad3b479de82d8f5ec185e2d00f3c96edcd (diff) | |
scsi-disk: bdrv_attach_dev() for empty CD-ROM
If no drive=... option is passed (for an empty drive), we don't only
lack the BlockBackend normally created by parse_drive(), but we also
need to manually call blk_attach_dev().
This fixes at least a segfault when unplugging such devices, the bug
that they didn't show up in query-block, and probably some more
problems.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
| -rw-r--r-- | hw/scsi/scsi-disk.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index a53f058621..5f1e5e8070 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -2384,9 +2384,14 @@ static void scsi_hd_realize(SCSIDevice *dev, Error **errp) static void scsi_cd_realize(SCSIDevice *dev, Error **errp) { SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, dev); + int ret; if (!dev->conf.blk) { + /* Anonymous BlockBackend for an empty drive. As we put it into + * dev->conf, qdev takes care of detaching on unplug. */ dev->conf.blk = blk_new(0, BLK_PERM_ALL); + ret = blk_attach_dev(dev->conf.blk, &dev->qdev); + assert(ret == 0); } s->qdev.blocksize = 2048; |