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authorYang Yingliang <yangyingliang@huawei.com>2021-05-18 07:45:14 +0300
committerMark Brown <broonie@kernel.org>2021-05-18 16:04:32 +0300
commit375904e3931955fcf0a847f029b2492a117efc43 (patch)
tree3177b2bddbf2c28bc1c20d7e3dac0e86a4e0b5c3 /sound/soc/hisilicon
parent5a3f869c5b4d230b60ba0197c10506dd4ae30851 (diff)
downloadlinux-375904e3931955fcf0a847f029b2492a117efc43.tar.xz
ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
After calling clk_prepare_enable(), clk_disable_unprepare() need be called when calling clk_set_rate() failed. Fixes: 0bf750f4cbe1 ("ASoC: hisilicon: Add hi6210 i2s audio driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20210518044514.607010-1-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/hisilicon')
-rw-r--r--sound/soc/hisilicon/hi6210-i2s.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/sound/soc/hisilicon/hi6210-i2s.c b/sound/soc/hisilicon/hi6210-i2s.c
index 907f5f1f7b44..ff05b9779e4b 100644
--- a/sound/soc/hisilicon/hi6210-i2s.c
+++ b/sound/soc/hisilicon/hi6210-i2s.c
@@ -102,18 +102,15 @@ static int hi6210_i2s_startup(struct snd_pcm_substream *substream,
for (n = 0; n < i2s->clocks; n++) {
ret = clk_prepare_enable(i2s->clk[n]);
- if (ret) {
- while (n--)
- clk_disable_unprepare(i2s->clk[n]);
- return ret;
- }
+ if (ret)
+ goto err_unprepare_clk;
}
ret = clk_set_rate(i2s->clk[CLK_I2S_BASE], 49152000);
if (ret) {
dev_err(i2s->dev, "%s: setting 49.152MHz base rate failed %d\n",
__func__, ret);
- return ret;
+ goto err_unprepare_clk;
}
/* enable clock before frequency division */
@@ -165,6 +162,11 @@ static int hi6210_i2s_startup(struct snd_pcm_substream *substream,
hi6210_write_reg(i2s, HII2S_SW_RST_N, val);
return 0;
+
+err_unprepare_clk:
+ while (n--)
+ clk_disable_unprepare(i2s->clk[n]);
+ return ret;
}
static void hi6210_i2s_shutdown(struct snd_pcm_substream *substream,