usb, gadget: use appropriate warning accessors

Use the appropriate WARN() and WARN_ON() accessors to avoid a build error
when CONFIG_BUG=n:

	drivers/usb/gadget/configfs.c: In function 'config_usb_cfg_unlink':
	drivers/usb/gadget/configfs.c:442:2: error: implicit declaration of function '__WARN_printf'
	drivers/usb/gadget/configfs.c: In function 'configfs_do_nothing':
	drivers/usb/gadget/configfs.c:733:2: error: implicit declaration of function '__WARN'

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index a34633a898a1..3d5cfc9c2c78 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -439,7 +439,7 @@ static int config_usb_cfg_unlink(
                 }
         }
         mutex_unlock(&gi->lock);
-        __WARN_printf("Unable to locate function to unbind\n");
+        WARN(1, "Unable to locate function to unbind\n");
         return 0;
 }
 
@@ -730,7 +730,7 @@ USB_CONFIG_STRINGS_LANG(gadget_strings, gadget_info);
 
 static int configfs_do_nothing(struct usb_composite_dev *cdev)
 {
-        __WARN();
+        WARN_ON(1);
         return -EINVAL;
 }