scsi: scsi_bus_legacy_handle_cmdline() can fail, fix callers

None of its callers checks for failure.  scsi_hot_add() can crash
because of that:

(qemu) drive_add 4 if=scsi,format=host_device,file=/dev/sg1
scsi-generic: scsi generic interface too old
Segmentation fault (core dumped)

Fix all callers, not just scsi_hot_add().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hw/scsi.h b/hw/scsi.h
index b668e277ae..b1b5f730d5 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -98,7 +98,7 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
 }
 
 SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, DriveInfo *dinfo, int unit);
-void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
+int scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
 
 void scsi_dev_clear_sense(SCSIDevice *dev);
 void scsi_dev_set_sense(SCSIDevice *dev, uint8_t key);