ALSA: synth: emux: soundfont.c: divide by zero in calc_gus_envelope_time()
This function is called from load_guspatch() and the rate is specified
by the user. If they accidentally selected zero then it would crash the
kernel. I've just changed the zero to a one.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/synth/emux/soundfont.c b/sound/synth/emux/soundfont.c
index 31a4ea9..9b5d701 100644
--- a/sound/synth/emux/soundfont.c
+++ b/sound/synth/emux/soundfont.c
@@ -856,6 +856,8 @@ calc_gus_envelope_time(int rate, int start, int end)
int r, p, t;
r = (3 - ((rate >> 6) & 3)) * 3;
p = rate & 0x3f;
+ if (!p)
+ p = 1;
t = end - start;
if (t < 0) t = -t;
if (13 > r)