clk_prepare_enable() and clk_prepare() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <[email protected]> --- sound/soc/mxs/mxs-saif.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c index b42f301..156aa7c 100644 --- a/sound/soc/mxs/mxs-saif.c +++ b/sound/soc/mxs/mxs-saif.c @@ -125,7 +125,9 @@ static int mxs_saif_set_clk(struct mxs_saif *saif, * * If MCLK is not used, we just set saif clk to 512*fs. */ - clk_prepare_enable(master_saif->clk); + ret = clk_prepare_enable(master_saif->clk); + if (ret) + return ret; if (master_saif->mclk_in_use) { switch (mclk / rate) { @@ -388,6 +390,7 @@ static int mxs_saif_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *cpu_dai) { struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai); + int ret; /* clear error status to 0 for each re-open */ saif->fifo_underrun = 0; @@ -401,7 +404,9 @@ static int mxs_saif_startup(struct snd_pcm_substream *substream, __raw_writel(BM_SAIF_CTRL_CLKGATE, saif->base + SAIF_CTRL + MXS_CLR_ADDR); - clk_prepare(saif->clk); + ret = clk_prepare(saif->clk); + if (ret) + return ret; return 0; } @@ -468,7 +473,9 @@ static int mxs_saif_hw_params(struct snd_pcm_substream *substream, if (ret) return ret; - clk_prepare(master_saif->clk); + ret = clk_prepare(master_saif->clk); + if (ret) + return ret; } scr = __raw_readl(saif->base + SAIF_CTRL); -- 1.9.1
