ASoC: rockchip-i2s: fix infinite loop in rockchip_snd_rxctrl

We can get into an infinite loop if the I2S_CLR register fails to
clear due to a missing break statement, so add that.

Signed-off-by: Jianqun <jay.xu@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org

1 files changed, 3 insertions, 1 deletions

diff --git a/sound/soc/rockchip/rockchip_i2s.c b/sound/soc/rockchip/rockchip_i2s.c
index f373e37f8305..c74ba37f862c 100644
--- a/sound/soc/rockchip/rockchip_i2s.c
+++ b/sound/soc/rockchip/rockchip_i2s.c
@@ -154,8 +154,10 @@ static void rockchip_snd_rxctrl(struct rk_i2s_dev *i2s, int on)
                         while (val) {
                                 regmap_read(i2s->regmap, I2S_CLR, &val);
                                 retry--;
-                                if (!retry)
+                                if (!retry) {
                                         dev_warn(i2s->dev, "fail to clear\n");
+                                        break;
+                                }
                         }
                 }
         }