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| author | Olivier Moysan <olivier.moysan@foss.st.com> | 2022-11-09 18:08:49 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-09 17:56:37 +0000 |
| commit | 7d945b046be3d2605dbb1806e73095aadd7ae129 (patch) | |
| tree | 90c54ae3ee82cf064e9f8d22787ab843b7b67e71 /sound/soc | |
| parent | 89cdb224f2abe37ec4ac21ba0d9ddeb5a6a9cf68 (diff) | |
| download | linux-stable-7d945b046be3d2605dbb1806e73095aadd7ae129.tar.gz linux-stable-7d945b046be3d2605dbb1806e73095aadd7ae129.tar.bz2 linux-stable-7d945b046be3d2605dbb1806e73095aadd7ae129.zip | |
ASoC: stm32: dfsdm: manage cb buffers cleanup
Ensure that resources allocated by iio_channel_get_all_cb()
are released on driver unbind.
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://lore.kernel.org/r/20221109170849.273719-1-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/stm/stm32_adfsdm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c index 643fc8a17018..837c1848d9bf 100644 --- a/sound/soc/stm/stm32_adfsdm.c +++ b/sound/soc/stm/stm32_adfsdm.c @@ -304,6 +304,11 @@ static int stm32_adfsdm_dummy_cb(const void *data, void *private) return 0; } +static void stm32_adfsdm_cleanup(void *data) +{ + iio_channel_release_all_cb(data); +} + static struct snd_soc_component_driver stm32_adfsdm_soc_platform = { .open = stm32_adfsdm_pcm_open, .close = stm32_adfsdm_pcm_close, @@ -350,6 +355,12 @@ static int stm32_adfsdm_probe(struct platform_device *pdev) if (IS_ERR(priv->iio_cb)) return PTR_ERR(priv->iio_cb); + ret = devm_add_action_or_reset(&pdev->dev, stm32_adfsdm_cleanup, priv->iio_cb); + if (ret < 0) { + dev_err(&pdev->dev, "Unable to add action\n"); + return ret; + } + component = devm_kzalloc(&pdev->dev, sizeof(*component), GFP_KERNEL); if (!component) return -ENOMEM; |