platform/x86: wmi: use sizeof(*p) in allocation

As per the coding style guide, the preferred way
to pass the size of objects to allocator functions
is `sizeof(*p)`. Use that.
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210904175450.156801-20-pobrn@protonmail.comReviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/wmi.c

@@ -1176,7 +1176,7 @@ static int parse_wdg(struct device *wmi_bus_dev, struct acpi_device *device)
 		if (guid_already_parsed(device, &gblock[i].guid))
 			continue;
 
-		wblock = kzalloc(sizeof(struct wmi_block), GFP_KERNEL);
+		wblock = kzalloc(sizeof(*wblock), GFP_KERNEL);
 		if (!wblock) {
 			retval = -ENOMEM;
 			break;