PCI: Convert alloc_pci_dev(void) to pci_alloc_dev(bus)

Use the new pci_alloc_dev(bus) to replace the existing using of
alloc_pci_dev(void).

[bhelgaas: drop pci_bus ref later in pci_release_dev()]
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: David Airlie <airlied@linux.ie>
Cc: Neela Syam Kolli <megaraidlinux@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 846f475f..90c95a3 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -2026,7 +2026,7 @@
 static inline int
 make_local_pdev(adapter_t *adapter, struct pci_dev **pdev)
 {
-	*pdev = alloc_pci_dev();
+	*pdev = pci_alloc_dev(NULL);
 
 	if( *pdev == NULL ) return -1;