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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-03 13:57:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-03 08:38:09 +0200 |
| commit | 9f1b3a5eaf4483cda3ac95df8e038a548787869b (patch) | |
| tree | e9d444a9462cd16d9a4f20b5d97eb093ad4c1fe5 /sound | |
| parent | fdcf6f9f16ab738e6c76fafc5feeea27e1fe2c83 (diff) | |
| download | linux-stable-9f1b3a5eaf4483cda3ac95df8e038a548787869b.tar.gz linux-stable-9f1b3a5eaf4483cda3ac95df8e038a548787869b.tar.bz2 linux-stable-9f1b3a5eaf4483cda3ac95df8e038a548787869b.zip | |
ASoC: cs43130: handle errors in cs43130_probe() properly
[ Upstream commit 2da441a6491d93eff8ffff523837fd621dc80389 ]
cs43130_probe() does not do any valid error checking of things it
initializes, OR what it does, it does not unwind properly if there are
errors.
Fix this up by moving the sysfs files to an attribute group so the
driver core will correctly add/remove them all at once and handle errors
with them, and correctly check for creating a new workqueue and
unwinding if that fails.
Cc: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210503115736.2104747-58-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/cs43130.c | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c index 80dc42197154..cf29dec28b5e 100644 --- a/sound/soc/codecs/cs43130.c +++ b/sound/soc/codecs/cs43130.c @@ -1738,6 +1738,14 @@ static DEVICE_ATTR(hpload_dc_r, 0444, cs43130_show_dc_r, NULL); static DEVICE_ATTR(hpload_ac_l, 0444, cs43130_show_ac_l, NULL); static DEVICE_ATTR(hpload_ac_r, 0444, cs43130_show_ac_r, NULL); +static struct attribute *hpload_attrs[] = { + &dev_attr_hpload_dc_l.attr, + &dev_attr_hpload_dc_r.attr, + &dev_attr_hpload_ac_l.attr, + &dev_attr_hpload_ac_r.attr, +}; +ATTRIBUTE_GROUPS(hpload); + static struct reg_sequence hp_en_cal_seq[] = { {CS43130_INT_MASK_4, CS43130_INT_MASK_ALL}, {CS43130_HP_MEAS_LOAD_1, 0}, @@ -2305,23 +2313,15 @@ static int cs43130_probe(struct snd_soc_component *component) cs43130->hpload_done = false; if (cs43130->dc_meas) { - ret = device_create_file(component->dev, &dev_attr_hpload_dc_l); - if (ret < 0) - return ret; - - ret = device_create_file(component->dev, &dev_attr_hpload_dc_r); - if (ret < 0) - return ret; - - ret = device_create_file(component->dev, &dev_attr_hpload_ac_l); - if (ret < 0) - return ret; - - ret = device_create_file(component->dev, &dev_attr_hpload_ac_r); - if (ret < 0) + ret = sysfs_create_groups(&component->dev->kobj, hpload_groups); + if (ret) return ret; cs43130->wq = create_singlethread_workqueue("cs43130_hp"); + if (!cs43130->wq) { + sysfs_remove_groups(&component->dev->kobj, hpload_groups); + return -ENOMEM; + } INIT_WORK(&cs43130->work, cs43130_imp_meas); } |