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ASoC: SOF: topology: check errors when parsing LED tokens

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sof_parse_tokens() returns a value that is checked on every call
except for LED tokens, fix with explicit test.

Detected with cppcheck warning:

sound/soc/sof/topology.c:973:6: style: Variable 'ret' is assigned a
value that is never used. [unreadVariable]
 ret = sof_parse_tokens(scomp, &scontrol->led_ctl, led_tokens,
     ^

Fixes: 5d43001ae4 ("ASoC: SOF: acpi led support for switch controls")
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191011164312.7988-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2019-10-11 11:43:12 -05:00 committed by Mark Brown
parent 494e8f65da
commit 8a3ab38c36
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1 changed files with 5 additions and 0 deletions
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5
sound/soc/sof/topology.c
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@ -963,6 +963,11 @@ out:
ret = sof_parse_tokens(scomp, &scontrol->led_ctl, led_tokens,
ARRAY_SIZE(led_tokens), mc->priv.array,
le32_to_cpu(mc->priv.size));
if (ret != 0) {
dev_err(sdev->dev, "error: parse led tokens failed %d\n",
le32_to_cpu(mc->priv.size));
return ret;
}
dev_dbg(sdev->dev, "tplg: load kcontrol index %d chans %d\n",
scontrol->comp_id, scontrol->num_channels);