[libvirt] [PATCH] qemu: Simplify the codes

[Osier Yang]

"disk" is initialized to "dev->data.disk" in the beginning of the
function.
---
 src/qemu/qemu_driver.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 2c36935..a7ef4a2 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -6154,9 +6154,8 @@ qemuDomainDetachDeviceDiskLive(virQEMUDriverPtr driver,
     case VIR_DOMAIN_DISK_DEVICE_LUN:
         if (disk->bus == VIR_DOMAIN_DISK_BUS_VIRTIO)
             ret = qemuDomainDetachPciDiskDevice(driver, vm, dev);
-        else if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI)
-            ret = qemuDomainDetachDiskDevice(driver, vm, dev);
-        else if (dev->data.disk->bus == VIR_DOMAIN_DISK_BUS_USB)
+        else if (disk->bus == VIR_DOMAIN_DISK_BUS_SCSI ||
+                 disk->bus == VIR_DOMAIN_DISK_BUS_USB)
             ret = qemuDomainDetachDiskDevice(driver, vm, dev);
         else
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
-- 
1.7.7.6