The patch
ASoC: fsl: fsl_spdif: Check for clk_prepare_enable() error
has been applied to the asoc tree at
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From fa3be9208dcb21ae4185f6122137fe7d5cf29d74 Mon Sep 17 00:00:00 2001
From: Fabio Estevam fabio.estevam@freescale.com Date: Sat, 20 Jun 2015 18:18:06 -0300 Subject: [PATCH] ASoC: fsl: fsl_spdif: Check for clk_prepare_enable() error
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 --- sound/soc/fsl/fsl_spdif.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index 8e93221..489fa86 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -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);