From: Vaibhav Agarwal Date: Sat, 24 Sep 2016 17:36:26 +0000 (+0530) Subject: greybus: audio: fix uninitialized variable errors found by cppcheck X-Git-Tag: v4.9-rc1~119^2~191 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7224a2a50a29871b2ae04cac731ea199adedbe68;p=karo-tx-linux.git greybus: audio: fix uninitialized variable errors found by cppcheck Currently, if info is null, the dev_err message is dereferencing an uninitialized module pointer. Instead, it should use codec->dev pointer in dev_err call and better align with other err msg in this function. Also, ret variable might be used uninitialized in a specific case. Avoid using it this way. Found using static analysis with cppcheck: Checking drivers/staging/greybus/audio_topology.c... [drivers/staging/greybus/audio_topology.c:175]: (error) Uninitialized variable: module [drivers/staging/greybus/audio_topology.c:495]: (error) Uninitialized variable: ret Reported-by: Colin Ian King Signed-off-by: Vaibhav Agarwal Acked-by: Viresh Kumar Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c index f9f33817a092..b6251691a33d 100644 --- a/drivers/staging/greybus/audio_topology.c +++ b/drivers/staging/greybus/audio_topology.c @@ -172,7 +172,7 @@ static int gbcodec_mixer_ctl_info(struct snd_kcontrol *kcontrol, info = (struct gb_audio_ctl_elem_info *)data->info; if (!info) { - dev_err(module->dev, "NULL info for %s\n", uinfo->id.name); + dev_err(codec->dev, "NULL info for %s\n", uinfo->id.name); return -EINVAL; } @@ -489,10 +489,11 @@ static int gbcodec_mixer_dapm_ctl_put(struct snd_kcontrol *kcontrol, dev_err_ratelimited(codec->dev, "%d:Error in %s for %s\n", ret, __func__, kcontrol->id.name); + return ret; } } - return ret; + return 0; } #define SOC_DAPM_MIXER_GB(xname, kcount, data) \