ata: libata-sff: make ata_resources_present() return 'bool'

ata_resources_present() returns 1 if the primary/secondary channel's PCI
resources are present,  0 if not -- the 'bool' type fits somewhat better
here than 'int'...

Use the *= operator, while at it...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>

drivers/ata/libata-sff.c

@@ -2174,18 +2174,18 @@ EXPORT_SYMBOL_GPL(ata_sff_std_ports);
 
 #ifdef CONFIG_PCI
 
-static int ata_resources_present(struct pci_dev *pdev, int port)
+static bool ata_resources_present(struct pci_dev *pdev, int port)
 {
 	int i;
 
 	/* Check the PCI resources for this channel are enabled */
-	port = port * 2;
+	port *= 2;
 	for (i = 0; i < 2; i++) {
 		if (pci_resource_start(pdev, port + i) == 0 ||
 		    pci_resource_len(pdev, port + i) == 0)
-			return 0;
+			return false;
 	}
-	return 1;
+	return true;
 }
 
 /**