GBA Audio: Reset audio FIFO DMA if an invalid destination is set

CHANGES

@@ -30,6 +30,7 @@ Bugfixes:
  - ARM7: Fix setting spsr privilege bits when spsr is empty
  - GBA BIOS: Fix ArcTan2 accuracy and boundary conditions
  - SDL: Fix sporadic crash when deinitializing audio
+ - GBA Audio: Reset audio FIFO DMA if an invalid destination is set
 Misc:
  - GBA: Slightly optimize GBAProcessEvents
  - Qt: Add preset for DualShock 4

src/gba/audio.c

@@ -126,6 +126,12 @@ void GBAAudioScheduleFifoDma(struct GBAAudio* audio, int number, struct GBADMA*
 		audio->chB.dmaSource = number;
 		break;
 	default:
+		if (audio->chA.dmaSource == number) {
+			audio->chA.dmaSource = -1;
+		}
+		if (audio->chB.dmaSource == number) {
+			audio->chB.dmaSource = -1;
+		}
 		mLOG(GBA_AUDIO, GAME_ERROR, "Invalid FIFO destination: 0x%08X", info->dest);
 		return;
 	}