ALSA: opl3: Fix possible negative array index access (a8d09e3a) · Commits · e / devices / android_kernel_fairphone_FP3

sound/drivers/opl3/opl3_midi.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -390,6 +390,11 @@ void snd_opl3_note_on(void p, int note, int vel, struct snd_midi_channel chan)
		voice = snd_opl3_oss_map[chan->number];
		}

		if (voice < 0) {
		spin_unlock_irqrestore(&opl3->voice_lock, flags);
		return;
		}

		if (voice < MAX_OPL2_VOICES) {
		/* Left register block for voices 0 .. 8 */
		reg_side = OPL3_LEFT;