usb/gadget: f_mass_storage: use string literal as format in dev_set_name

Fix commit b27c08c9 where dev_set_name()
is used without a string literal as format.
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/gadget/f_mass_storage.c

@@ -2949,7 +2949,7 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 		lun->dev.release = fsg_lun_release;
 		lun->dev.parent = &common->gadget->dev;
 		dev_set_drvdata(&lun->dev, &common->filesem);
-		dev_set_name(&lun->dev, name);
+		dev_set_name(&lun->dev, "%s", name);
 		lun->name = dev_name(&lun->dev);
 
 		rc = fsg_common_add_sysfs(common, lun);