2022-03-22 23:29:26

by Srinivasa Rao Mandadapu

[permalink] [raw]
Subject: [PATCH] ASoC: codecs: Fix error handling in power domain init and exit handlers

Update error handling in power domain init and exit handlers, as existing handling
may cause issues in device remove function.
Use appropriate pm core api for power domain get and sync to avoid redundant code.

Fixes: 9e3d83c52844 ("ASoC: codecs: Add power domains support in digital macro codecs")

Signed-off-by: Srinivasa Rao Mandadapu <[email protected]>
Co-developed-by: Venkata Prasad Potturu <[email protected]>
Signed-off-by: Venkata Prasad Potturu <[email protected]>
Reported-by: kernel test robot <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
---
sound/soc/codecs/lpass-macro-common.c | 35 +++++++++++++++++++----------------
1 file changed, 19 insertions(+), 16 deletions(-)

diff --git a/sound/soc/codecs/lpass-macro-common.c b/sound/soc/codecs/lpass-macro-common.c
index 6cede75..3c661fd 100644
--- a/sound/soc/codecs/lpass-macro-common.c
+++ b/sound/soc/codecs/lpass-macro-common.c
@@ -24,42 +24,45 @@ struct lpass_macro *lpass_macro_pds_init(struct device *dev)
return ERR_PTR(-ENOMEM);

l_pds->macro_pd = dev_pm_domain_attach_by_name(dev, "macro");
- if (IS_ERR_OR_NULL(l_pds->macro_pd))
- return NULL;
-
- ret = pm_runtime_get_sync(l_pds->macro_pd);
- if (ret < 0) {
- pm_runtime_put_noidle(l_pds->macro_pd);
+ if (IS_ERR_OR_NULL(l_pds->macro_pd)) {
+ ret = PTR_ERR(l_pds->macro_pd);
goto macro_err;
}

+ ret = pm_runtime_resume_and_get(l_pds->macro_pd);
+ if (ret < 0)
+ goto macro_sync_err;
+
l_pds->dcodec_pd = dev_pm_domain_attach_by_name(dev, "dcodec");
- if (IS_ERR_OR_NULL(l_pds->dcodec_pd))
+ if (IS_ERR_OR_NULL(l_pds->dcodec_pd)) {
+ ret = PTR_ERR(l_pds->dcodec_pd);
goto dcodec_err;
+ }

- ret = pm_runtime_get_sync(l_pds->dcodec_pd);
- if (ret < 0) {
- pm_runtime_put_noidle(l_pds->dcodec_pd);
+ ret = pm_runtime_resume_and_get(l_pds->dcodec_pd);
+ if (ret < 0)
goto dcodec_sync_err;
- }
return l_pds;

dcodec_sync_err:
dev_pm_domain_detach(l_pds->dcodec_pd, false);
dcodec_err:
pm_runtime_put(l_pds->macro_pd);
-macro_err:
+macro_sync_err:
dev_pm_domain_detach(l_pds->macro_pd, false);
+macro_err:
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(lpass_macro_pds_init);

void lpass_macro_pds_exit(struct lpass_macro *pds)
{
- pm_runtime_put(pds->macro_pd);
- dev_pm_domain_detach(pds->macro_pd, false);
- pm_runtime_put(pds->dcodec_pd);
- dev_pm_domain_detach(pds->dcodec_pd, false);
+ if (pds) {
+ pm_runtime_put(pds->macro_pd);
+ dev_pm_domain_detach(pds->macro_pd, false);
+ pm_runtime_put(pds->dcodec_pd);
+ dev_pm_domain_detach(pds->dcodec_pd, false);
+ }
}
EXPORT_SYMBOL_GPL(lpass_macro_pds_exit);

--
2.7.4


2022-04-06 00:21:47

by Mark Brown

[permalink] [raw]
Subject: Re: [PATCH] ASoC: codecs: Fix error handling in power domain init and exit handlers

On Tue, 22 Mar 2022 21:48:57 +0530, Srinivasa Rao Mandadapu wrote:
> Update error handling in power domain init and exit handlers, as existing handling
> may cause issues in device remove function.
> Use appropriate pm core api for power domain get and sync to avoid redundant code.
>
> Fixes: 9e3d83c52844 ("ASoC: codecs: Add power domains support in digital macro codecs")
>
>
> [...]

Applied to

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: codecs: Fix error handling in power domain init and exit handlers
commit: 1a8ee4cf84187bce17c76886eb6dd9389c3b99a8

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark