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| author | Yang Yingliang <yangyingliang@huawei.com> | 2021-05-18 12:45:14 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-20 16:15:55 +0200 |
| commit | e784b66299dd9fa764d4969ca987493e14597534 (patch) | |
| tree | 39d06b56e3a0bb6864f0c8be03b18f7b8731d545 /sound | |
| parent | 51ef21934d1cc8e8af434a3d8429baeb41a4a91f (diff) | |
| download | linux-stable-e784b66299dd9fa764d4969ca987493e14597534.tar.gz linux-stable-e784b66299dd9fa764d4969ca987493e14597534.tar.bz2 linux-stable-e784b66299dd9fa764d4969ca987493e14597534.zip | |
ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup()
[ Upstream commit 375904e3931955fcf0a847f029b2492a117efc43 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/hisilicon/hi6210-i2s.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/sound/soc/hisilicon/hi6210-i2s.c b/sound/soc/hisilicon/hi6210-i2s.c index 53344a3b7a60..864718ef874f 100644 --- a/sound/soc/hisilicon/hi6210-i2s.c +++ b/sound/soc/hisilicon/hi6210-i2s.c @@ -110,18 +110,15 @@ 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 */ @@ -173,6 +170,11 @@ 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, |