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ASoC: fsl: fsl_spdif: Check for clk_prepare_enable() error

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clk_prepare_enable() may fail, so we should better check its return value
and propagate it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Fabio Estevam 2015-06-20 18:18:06 -03:00 committed by Mark Brown
parent b1ade0f2af
commit fa3be9208d
1 changed files with 11 additions and 3 deletions
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14
sound/soc/fsl/fsl_spdif.c
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@ -482,13 +482,18 @@ static int fsl_spdif_startup(struct snd_pcm_substream *substream,
mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
SCR_TXFIFO_FSEL_MASK;
for (i = 0; i < SPDIF_TXRATE_MAX; i++)
clk_prepare_enable(spdif_priv->txclk[i]);
for (i = 0; i < SPDIF_TXRATE_MAX; i++) {
ret = clk_prepare_enable(spdif_priv->txclk[i]);
if (ret)
goto disable_txclk;
}
} else {
scr = SCR_RXFIFO_FSEL_IF8 | SCR_RXFIFO_AUTOSYNC;
mask = SCR_RXFIFO_FSEL_MASK | SCR_RXFIFO_AUTOSYNC_MASK|
SCR_RXFIFO_CTL_MASK | SCR_RXFIFO_OFF_MASK;
clk_prepare_enable(spdif_priv->rxclk);
ret = clk_prepare_enable(spdif_priv->rxclk);
if (ret)
goto err;
}
regmap_update_bits(regmap, REG_SPDIF_SCR, mask, scr);
@ -497,6 +502,9 @@ static int fsl_spdif_startup(struct snd_pcm_substream *substream,
return 0;
disable_txclk:
for (i--; i >= 0; i--)
clk_disable_unprepare(spdif_priv->txclk[i]);
err:
clk_disable_unprepare(spdif_priv->coreclk);