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authorMaxim Levitsky <mlevitsk@redhat.com>2020-10-06 15:39:02 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2020-10-12 11:50:51 -0400
commit8ff34495601067d02edb54b4346cace84ec4e1df (patch)
tree7cf8d0bf91434251488d06b8e8c2dc59c861014d /hw/scsi
parent8ddf958e8d62ada6395460b91ec5964ef21fed12 (diff)
downloadqemu-arm-8ff34495601067d02edb54b4346cace84ec4e1df.tar.gz
scsi/scsi_bus: Add scsi_device_get
Add scsi_device_get which finds the scsi device and takes a reference to it. Suggested-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com> Message-Id: <20200913160259.32145-8-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201006123904.610658-12-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/scsi')
-rw-r--r--hw/scsi/scsi-bus.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index 7599113efe..eda8cb7e70 100644
--- a/hw/scsi/scsi-bus.c
+++ b/hw/scsi/scsi-bus.c
@@ -73,6 +73,17 @@ SCSIDevice *scsi_device_find(SCSIBus *bus, int channel, int id, int lun)
return do_scsi_device_find(bus, channel, id, lun, false);
}
+SCSIDevice *scsi_device_get(SCSIBus *bus, int channel, int id, int lun)
+{
+ SCSIDevice *d;
+ RCU_READ_LOCK_GUARD();
+ d = do_scsi_device_find(bus, channel, id, lun, false);
+ if (d) {
+ object_ref(d);
+ }
+ return d;
+}
+
static void scsi_device_realize(SCSIDevice *s, Error **errp)
{
SCSIDeviceClass *sc = SCSI_DEVICE_GET_CLASS(s);