HID: do not try to compile PM code with CONFIG_PM unset

Fixes this build breakage in case when CONFIG_PM is not set

drivers/hid/usbhid/hid-core.c: In function 'hid_suspend':
drivers/hid/usbhid/hid-core.c:1220: error: 'struct usb_device' has no member named 'auto_pm'
drivers/hid/usbhid/hid-core.c:1245: error: 'struct usb_device' has no member named 'auto_pm'
drivers/hid/usbhid/hid-core.c:1258: error: 'struct usb_device' has no member named 'auto_pm'

by throwing both the hid_suspend() and hid_resume() away completely
in such case, as they won't be used anyway.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 625e7e8..d8799a1 100644 (file)
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -1210,6 +1210,7 @@ static void hid_cease_io(struct usbhid_device *usbhid)
        flush_scheduled_work();
 }
 
+#ifdef CONFIG_PM
 static int hid_suspend(struct usb_interface *intf, pm_message_t message)
 {
        struct hid_device *hid = usb_get_intfdata(intf);
@@ -1292,6 +1293,8 @@ static int hid_resume(struct usb_interface *intf)
        return 0;
 }
 
+#endif /* CONFIG_PM */
+
 /* Treat USB reset pretty much the same as suspend/resume */
 static int hid_pre_reset(struct usb_interface *intf)
 {
@@ -1353,9 +1356,11 @@ static struct usb_driver hid_driver = {
        .name =         "usbhid",
        .probe =        hid_probe,
        .disconnect =   hid_disconnect,
+#ifdef CONFIG_PM
        .suspend =      hid_suspend,
        .resume =       hid_resume,
        .reset_resume = hid_post_reset,
+#endif
        .pre_reset =    hid_pre_reset,
        .post_reset =   hid_post_reset,
        .id_table =     hid_usb_ids,