USB: file.c: remove dbg() usage

dbg() was a very old USB-specific macro that should no longer
be used. This patch removes it from being used in the driver
and uses dev_dbg() instead.

CC: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index d95760d..e673b26 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -183,7 +183,7 @@
 	if (retval)
 		return retval;
 
-	dev_dbg(&intf->dev, "looking for a minor, starting at %d", minor_base);
+	dev_dbg(&intf->dev, "looking for a minor, starting at %d\n", minor_base);
 
 	down_write(&minor_rwsem);
 	for (minor = minor_base; minor < MAX_USB_MINORS; ++minor) {
@@ -239,7 +239,7 @@
 	if (intf->minor == -1)
 		return;
 
-	dbg ("removing %d minor", intf->minor);
+	dev_dbg(&intf->dev, "removing %d minor\n", intf->minor);
 
 	down_write(&minor_rwsem);
 	usb_minors[intf->minor] = NULL;