platform/x86: p2sb: Use pci_resource_n() in p2sb_read_bar0()

Accesses to resource[] member of struct pci_dev shall be wrapped with
pci_resource_n() for future compatibility. Call the helper function in
p2sb_read_bar0().

Suggested-by: Andy Shevchenko <[email protected]>
Signed-off-by: Shin'ichiro Kawasaki <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Tested-by Klara Modin <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>

Author: kawasaki

drivers/platform/x86/p2sb.c

@@ -65,7 +65,7 @@ static bool p2sb_valid_resource(struct resource *res)
 /* Copy resource from the first BAR of the device in question */
 static void p2sb_read_bar0(struct pci_dev *pdev, struct resource *mem)
 {
-	struct resource *bar0 = &pdev->resource[0];
+	struct resource *bar0 = pci_resource_n(pdev, 0);
 
 	/* Make sure we have no dangling pointers in the output */
 	memset(mem, 0, sizeof(*mem));