PCI: Use consistent put_user() pointer types

We used u8, u16, and u32 for get_user() pointer types, but "unsigned char",
"unsigned short", and "unsigned int" for put_user().

Use u8, u16, and u32 for put_user() for consistency.  No functional change
intended.

Link: https://lore.kernel.org/r/20230824193712.542167-6-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

drivers/pci/syscall.c

@@ -52,13 +52,13 @@ SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
 
 	switch (len) {
 	case 1:
-		err = put_user(byte, (unsigned char __user *)buf);
+		err = put_user(byte, (u8 __user *)buf);
 		break;
 	case 2:
-		err = put_user(word, (unsigned short __user *)buf);
+		err = put_user(word, (u16 __user *)buf);
 		break;
 	case 4:
-		err = put_user(dword, (unsigned int __user *)buf);
+		err = put_user(dword, (u32 __user *)buf);
 		break;
 	}
 	pci_dev_put(dev);
@@ -70,13 +70,13 @@ SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
 	   they get instead of a machine check on x86.  */
 	switch (len) {
 	case 1:
-		put_user(-1, (unsigned char __user *)buf);
+		put_user(-1, (u8 __user *)buf);
 		break;
 	case 2:
-		put_user(-1, (unsigned short __user *)buf);
+		put_user(-1, (u16 __user *)buf);
 		break;
 	case 4:
-		put_user(-1, (unsigned int __user *)buf);
+		put_user(-1, (u32 __user *)buf);
 		break;
 	}
 	pci_dev_put(dev);