From: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com

[ Upstream commit 98ff5c262f27aafee077a4c096f71a8566e9e948 ]

Multiple Intel ASoC machine drivers repeat the same pattern in their .late_probe() methods: they first check whether the common HDMI codec driver is used, if not, they proceed by linking the legacy HDMI driver to each HDMI port. While doing that they use some inconsistent code:

1. after the loop they check, whether the list contained at least one element and if not, they return an error. However, the earlier code to use the common HDMI driver uses the first element of the same list without checking. To fix this we move the check to the top of the function.

2. some of those .late_probe() implementations execute code, only needed for the common HDMI driver, before checking, whether the driver is used. Move the code to after the check.

3. Some of those functions also perform a redundant initialisation of the "err" variable.

This patch fixes those issues.

Signed-off-by: Guennadi Liakhovetski guennadi.liakhovetski@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20200124213625.30186-8-pierre-louis.bossart@linux.... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/intel/boards/bxt_da7219_max98357a.c | 14 +++++++------- sound/soc/intel/boards/bxt_rt298.c | 14 +++++++------- sound/soc/intel/boards/cml_rt1011_rt5682.c | 13 +++++++------ sound/soc/intel/boards/glk_rt5682_max98357a.c | 16 ++++++++-------- sound/soc/intel/boards/sof_rt5682.c | 15 ++++++++------- 5 files changed, 37 insertions(+), 35 deletions(-)

diff --git a/sound/soc/intel/boards/bxt_da7219_max98357a.c b/sound/soc/intel/boards/bxt_da7219_max98357a.c index 5873abb46441c..749b1c4f1ceec 100644 --- a/sound/soc/intel/boards/bxt_da7219_max98357a.c +++ b/sound/soc/intel/boards/bxt_da7219_max98357a.c @@ -617,12 +617,15 @@ static int bxt_card_late_probe(struct snd_soc_card *card) snd_soc_dapm_add_routes(&card->dapm, broxton_map, ARRAY_SIZE(broxton_map));

- pcm = list_first_entry(&ctx->hdmi_pcm_list, struct bxt_hdmi_pcm, - head); - component = pcm->codec_dai->component; + if (list_empty(&ctx->hdmi_pcm_list)) + return -EINVAL;

- if (ctx->common_hdmi_codec_drv) + if (ctx->common_hdmi_codec_drv) { + pcm = list_first_entry(&ctx->hdmi_pcm_list, struct bxt_hdmi_pcm, + head); + component = pcm->codec_dai->component; return hda_dsp_hdmi_build_controls(card, component); + }

list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { component = pcm->codec_dai->component; @@ -643,9 +646,6 @@ static int bxt_card_late_probe(struct snd_soc_card *card) i++; }

- if (!component) - return -EINVAL; - return hdac_hdmi_jack_port_init(component, &card->dapm); }

diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c index eabf9d8468ae5..becfc4fc1aff3 100644 --- a/sound/soc/intel/boards/bxt_rt298.c +++ b/sound/soc/intel/boards/bxt_rt298.c @@ -529,12 +529,15 @@ static int bxt_card_late_probe(struct snd_soc_card *card) int err, i = 0; char jack_name[NAME_SIZE];

- pcm = list_first_entry(&ctx->hdmi_pcm_list, struct bxt_hdmi_pcm, - head); - component = pcm->codec_dai->component; + if (list_empty(&ctx->hdmi_pcm_list)) + return -EINVAL;

- if (ctx->common_hdmi_codec_drv) + if (ctx->common_hdmi_codec_drv) { + pcm = list_first_entry(&ctx->hdmi_pcm_list, struct bxt_hdmi_pcm, + head); + component = pcm->codec_dai->component; return hda_dsp_hdmi_build_controls(card, component); + }

list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { component = pcm->codec_dai->component; @@ -555,9 +558,6 @@ static int bxt_card_late_probe(struct snd_soc_card *card) i++; }

- if (!component) - return -EINVAL; - return hdac_hdmi_jack_port_init(component, &card->dapm); }

diff --git a/sound/soc/intel/boards/cml_rt1011_rt5682.c b/sound/soc/intel/boards/cml_rt1011_rt5682.c index 5f1bf6d3800c6..a54636f77c8e6 100644 --- a/sound/soc/intel/boards/cml_rt1011_rt5682.c +++ b/sound/soc/intel/boards/cml_rt1011_rt5682.c @@ -241,12 +241,15 @@ static int sof_card_late_probe(struct snd_soc_card *card) struct hdmi_pcm *pcm; int ret, i = 0;

- pcm = list_first_entry(&ctx->hdmi_pcm_list, struct hdmi_pcm, - head); - component = pcm->codec_dai->component; + if (list_empty(&ctx->hdmi_pcm_list)) + return -EINVAL;

- if (ctx->common_hdmi_codec_drv) + if (ctx->common_hdmi_codec_drv) { + pcm = list_first_entry(&ctx->hdmi_pcm_list, struct hdmi_pcm, + head); + component = pcm->codec_dai->component; return hda_dsp_hdmi_build_controls(card, component); + }

list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { component = pcm->codec_dai->component; @@ -265,8 +268,6 @@ static int sof_card_late_probe(struct snd_soc_card *card)

i++; } - if (!component) - return -EINVAL;

return hdac_hdmi_jack_port_init(component, &card->dapm); } diff --git a/sound/soc/intel/boards/glk_rt5682_max98357a.c b/sound/soc/intel/boards/glk_rt5682_max98357a.c index b36264d1d1cd3..94c6bdfab63bb 100644 --- a/sound/soc/intel/boards/glk_rt5682_max98357a.c +++ b/sound/soc/intel/boards/glk_rt5682_max98357a.c @@ -544,15 +544,18 @@ static int glk_card_late_probe(struct snd_soc_card *card) struct snd_soc_component *component = NULL; char jack_name[NAME_SIZE]; struct glk_hdmi_pcm *pcm; - int err = 0; + int err; int i = 0;

- pcm = list_first_entry(&ctx->hdmi_pcm_list, struct glk_hdmi_pcm, - head); - component = pcm->codec_dai->component; + if (list_empty(&ctx->hdmi_pcm_list)) + return -EINVAL;

- if (ctx->common_hdmi_codec_drv) + if (ctx->common_hdmi_codec_drv) { + pcm = list_first_entry(&ctx->hdmi_pcm_list, struct glk_hdmi_pcm, + head); + component = pcm->codec_dai->component; return hda_dsp_hdmi_build_controls(card, component); + }

list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { component = pcm->codec_dai->component; @@ -573,9 +576,6 @@ static int glk_card_late_probe(struct snd_soc_card *card) i++; }

- if (!component) - return -EINVAL; - return hdac_hdmi_jack_port_init(component, &card->dapm); }

diff --git a/sound/soc/intel/boards/sof_rt5682.c b/sound/soc/intel/boards/sof_rt5682.c index 8a13231dee15d..5d878873a8e08 100644 --- a/sound/soc/intel/boards/sof_rt5682.c +++ b/sound/soc/intel/boards/sof_rt5682.c @@ -273,19 +273,22 @@ static int sof_card_late_probe(struct snd_soc_card *card) struct snd_soc_component *component = NULL; char jack_name[NAME_SIZE]; struct sof_hdmi_pcm *pcm; - int err = 0; + int err; int i = 0;

/* HDMI is not supported by SOF on Baytrail/CherryTrail */ if (is_legacy_cpu) return 0;

- pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, - head); - component = pcm->codec_dai->component; + if (list_empty(&ctx->hdmi_pcm_list)) + return -EINVAL;

- if (ctx->common_hdmi_codec_drv) + if (ctx->common_hdmi_codec_drv) { + pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, + head); + component = pcm->codec_dai->component; return hda_dsp_hdmi_build_controls(card, component); + }

list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { component = pcm->codec_dai->component; @@ -305,8 +308,6 @@ static int sof_card_late_probe(struct snd_soc_card *card)

i++; } - if (!component) - return -EINVAL;

return hdac_hdmi_jack_port_init(component, &card->dapm); }