From 60ba05d3d908cca7b40236a5134706522342b881 Mon Sep 17 00:00:00 2001
From: philippe44 <philippe44@users.noreply.github.com>
Date: Sat, 9 Jul 2022 14:13:04 -0700
Subject: [PATCH] Protect artwork update with mutex - release

---
 components/squeezelite/displayer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/components/squeezelite/displayer.c b/components/squeezelite/displayer.c
index 38f8905c..b3354809 100644
--- a/components/squeezelite/displayer.c
+++ b/components/squeezelite/displayer.c
@@ -875,7 +875,9 @@ static void grfa_handler(u8_t *data, int len) {
 	artwork.size += size;
 	if (artwork.size == length) {
 		GDS_ClearWindow(display, artwork.x, artwork.y, -1, -1, GDS_COLOR_BLACK);
+		xSemaphoreTake(displayer.mutex, portMAX_DELAY);
 		GDS_DrawJPEG(display, artwork.data, artwork.x, artwork.y, artwork.y < displayer.height ? (GDS_IMAGE_RIGHT | GDS_IMAGE_TOP) : GDS_IMAGE_CENTER);
+		xSemaphoreGive(displayer.mutex);
 		free(artwork.data);
 		artwork.data = NULL;
 	}