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ASoC: stm32: sai: fix device leak on probe 

Make sure to drop the reference taken when looking up the sync provider
device and its driver data during DAI probe on probe failures and on
unbind.

Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.

Fixes: 7dd0d83558 ("ASoC: stm32: sai: simplify sync modes management")
Fixes: 1c3816a194 ("ASoC: stm32: sai: add missing put_device()")
Cc: stable@vger.kernel.org	# 4.16: 1c3816a194
Cc: olivier moysan <olivier.moysan@st.com>
Cc: Wen Yang <yellowriver2010@hotmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: olivier moysan <olivier.moysan@foss.st.com>
Link: https://patch.msgid.link/20251124104908.15754-2-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Johan Hovold 2025-11-24 11:49:05 +01:00 committed by Mark Brown
parent ac3fd01e4c
commit e26ff429ea
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1 changed files with 1 additions and 1 deletions
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2
sound/soc/stm/stm32_sai.c
View File

@ -143,6 +143,7 @@ static int stm32_sai_set_sync(struct stm32_sai_data *sai_client,
}
sai_provider = platform_get_drvdata(pdev);
put_device(&pdev->dev);
if (!sai_provider) {
dev_err(&sai_client->pdev->dev,
"SAI sync provider data not found\n");
@ -159,7 +160,6 @@ static int stm32_sai_set_sync(struct stm32_sai_data *sai_client,
ret = stm32_sai_sync_conf_provider(sai_provider, synco);
error:
put_device(&pdev->dev);
of_node_put(np_provider);
return ret;
}