6.5-stable review patch. If anyone has any objections, please let me know.
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From: Johan Hovold johan+linaro@kernel.org
commit 69a026a2357ee69983690d07976de44ef26ee38a upstream.
Make sure to disable and free the regulators on probe errors and on driver unbind.
Fixes: 16572522aece ("ASoC: codecs: wcd938x-sdw: add SoundWire driver") Cc: stable@vger.kernel.org # 5.14 Cc: Srinivas Kandagatla srinivas.kandagatla@linaro.org Signed-off-by: Johan Hovold johan+linaro@kernel.org Link: https://lore.kernel.org/r/20231003155558.27079-5-johan+linaro@kernel.org Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/soc/codecs/wcd938x.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-)
--- a/sound/soc/codecs/wcd938x.c +++ b/sound/soc/codecs/wcd938x.c @@ -3325,8 +3325,10 @@ static int wcd938x_populate_dt_data(stru return dev_err_probe(dev, ret, "Failed to get supplies\n");
ret = regulator_bulk_enable(WCD938X_MAX_SUPPLY, wcd938x->supplies); - if (ret) + if (ret) { + regulator_bulk_free(WCD938X_MAX_SUPPLY, wcd938x->supplies); return dev_err_probe(dev, ret, "Failed to enable supplies\n"); + }
wcd938x_dt_parse_micbias_info(dev, wcd938x);
@@ -3592,13 +3594,13 @@ static int wcd938x_probe(struct platform
ret = wcd938x_add_slave_components(wcd938x, dev, &match); if (ret) - return ret; + goto err_disable_regulators;
wcd938x_reset(wcd938x);
ret = component_master_add_with_match(dev, &wcd938x_comp_ops, match); if (ret) - return ret; + goto err_disable_regulators;
pm_runtime_set_autosuspend_delay(dev, 1000); pm_runtime_use_autosuspend(dev); @@ -3608,11 +3610,21 @@ static int wcd938x_probe(struct platform pm_runtime_idle(dev);
return 0; + +err_disable_regulators: + regulator_bulk_disable(WCD938X_MAX_SUPPLY, wcd938x->supplies); + regulator_bulk_free(WCD938X_MAX_SUPPLY, wcd938x->supplies); + + return ret; }
static void wcd938x_remove(struct platform_device *pdev) { + struct wcd938x_priv *wcd938x = dev_get_drvdata(&pdev->dev); + component_master_del(&pdev->dev, &wcd938x_comp_ops); + regulator_bulk_disable(WCD938X_MAX_SUPPLY, wcd938x->supplies); + regulator_bulk_free(WCD938X_MAX_SUPPLY, wcd938x->supplies); }
#if defined(CONFIG_OF)