[PATCH 6.1 093/197] ASoC: codecs: wcd938x: handle deferred probe

Greg Kroah-Hartman
2024-02-20T21:02:48Z

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

commit 086df711d9b886194481b4fbe525eb43e9ae7403 upstream.

WCD938x sound codec driver ignores return status of getting regulators
and returns EINVAL instead of EPROBE_DEFER. If regulator provider
probes after the codec, system is left without probed audio:

wcd938x_codec audio-codec: wcd938x_probe: Fail to obtain platform data
wcd938x_codec: probe of audio-codec failed with error -22

Fixes: 16572522aece ("ASoC: codecs: wcd938x-sdw: add SoundWire driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://msgid.link/r/20240117151208.1219755-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
sound/soc/codecs/wcd938x.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -3588,7 +3588,7 @@ static int wcd938x_probe(struct platform
ret = wcd938x_populate_dt_data(wcd938x, dev);
if (ret) {
dev_err(dev, "%s: Fail to obtain platform data\n", __func__);
- return -EINVAL;
+ return ret;
}

ret = wcd938x_add_slave_components(wcd938x, dev, &match);