From: Pierre-Louis Bossart Date: Fri, 11 Oct 2019 16:43:12 +0000 (-0500) Subject: ASoC: SOF: topology: check errors when parsing LED tokens X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8a3ab38c36926ddbda3d2a3086c0a741fa175cff;p=linux.git ASoC: SOF: topology: check errors when parsing LED tokens 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: 5d43001ae4360 ("ASoC: SOF: acpi led support for switch controls") Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20191011164312.7988-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 3fad1d5cb2ca5..b3ab6f23fc930 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -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);