'sound play 1 100000' results in an endless loop on the sandbox.
If the frequency exceeds half the sampling rate, zero out the output buffer.
Fixes: 511ed5fdd389 ("SOUND: SAMSUNG: Add I2S driver") Signed-off-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- v2: no change --- drivers/sound/sound.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/sound/sound.c b/drivers/sound/sound.c index 041dfdccfe..c0fc50c99d 100644 --- a/drivers/sound/sound.c +++ b/drivers/sound/sound.c @@ -15,7 +15,10 @@ void sound_create_square_wave(uint sample_rate, unsigned short *data, int size, const int period = freq ? sample_rate / freq : 0; const int half = period / 2;
- assert(freq); + if (!half) { + memset(data, 0, size); + return; + }
/* Make sure we don't overflow our buffer */ if (size % 2)