cpqarray: enable bus mastering

We've been carrying this patch for the last 3 years in Fedora,
long past time we got it upstream...

Call pci_set_master to enable bus-mastering if the BIOS hasn't
done it already.

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 5d39df1..ca268ca 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -617,6 +617,7 @@
 	int i;
 
 	c->pci_dev = pdev;
+	pci_set_master(pdev);
 	if (pci_enable_device(pdev)) {
 		printk(KERN_ERR "cpqarray: Unable to Enable PCI device\n");
 		return -1;