iio: remove extra ; after function definition

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index fb0fe46..ad4fb1a 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -184,7 +184,7 @@
 }
 
 static inline void iio_buffer_unregister(struct iio_dev *indio_dev)
-{};
+{}
 
 #endif /* CONFIG_IIO_BUFFER */