From: Simon Glass <sjg@chromium.org>
Date: Fri, 16 Nov 2018 02:56:12 +0000 (-0700)
Subject: sound: Correct data output in sound_create_square_wave()
X-Git-Tag: v2019.01-rc1~16^2~10
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=03f11e87a8;p=oweals%2Fu-boot.git

sound: Correct data output in sound_create_square_wave()

This function currently outputs twice as much data as it should and
overwrites its buffer as a result. Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/sound/sound.c b/drivers/sound/sound.c
index 969408186f..6c1eb4c19c 100644
--- a/drivers/sound/sound.c
+++ b/drivers/sound/sound.c
@@ -25,12 +25,10 @@ void sound_create_square_wave(unsigned short *data, int size, uint32_t freq)
 		for (i = 0; size && i < half; i++) {
 			size -= 2;
 			*data++ = amplitude;
-			*data++ = amplitude;
 		}
 		for (i = 0; size && i < period - half; i++) {
 			size -= 2;
 			*data++ = -amplitude;
-			*data++ = -amplitude;
 		}
 	}
 }