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ASoC: sh: rz-ssi: Check return value of pm_runtime_resume_and_get()

Message ID 9fed506d-b780-55cd-45a4-9bd2407c910f@gmail.com
State Accepted
Commit f04b4fb47d83b110a5b007fb2eddea862cfeb151
Headers show
Series ASoC: sh: rz-ssi: Check return value of pm_runtime_resume_and_get() | expand

Commit Message

Heiner Kallweit Dec. 17, 2021, 9:22 a.m. UTC
The return value of pm_runtime_resume_and_get() needs to be checked to
avoid a usage count imbalance in the error case. This fix is basically
the same as 92c959bae2e5 ("reset: renesas: Fix Runtime PM usage"),
and the last step before pm_runtime_resume_and_get() can be annotated
as __must_check.

Fixes: 03e786bd4341 ("ASoC: sh: Add RZ/G2L SSIF-2 driver")
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 sound/soc/sh/rz-ssi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Mark Brown Dec. 21, 2021, 2:50 a.m. UTC | #1
On Fri, 17 Dec 2021 10:22:31 +0100, Heiner Kallweit wrote:
> The return value of pm_runtime_resume_and_get() needs to be checked to
> avoid a usage count imbalance in the error case. This fix is basically
> the same as 92c959bae2e5 ("reset: renesas: Fix Runtime PM usage"),
> and the last step before pm_runtime_resume_and_get() can be annotated
> as __must_check.
> 
> 
> [...]

Applied to

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

Thanks!

[1/1] ASoC: sh: rz-ssi: Check return value of pm_runtime_resume_and_get()
      commit: f04b4fb47d83b110a5b007fb2eddea862cfeb151

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
diff mbox series

Patch

diff --git a/sound/soc/sh/rz-ssi.c b/sound/soc/sh/rz-ssi.c
index fa0cc08f7..850387dd8 100644
--- a/sound/soc/sh/rz-ssi.c
+++ b/sound/soc/sh/rz-ssi.c
@@ -1020,7 +1020,12 @@  static int rz_ssi_probe(struct platform_device *pdev)
 
 	reset_control_deassert(ssi->rstc);
 	pm_runtime_enable(&pdev->dev);
-	pm_runtime_resume_and_get(&pdev->dev);
+	ret = pm_runtime_resume_and_get(&pdev->dev);
+	if (ret < 0) {
+		pm_runtime_disable(ssi->dev);
+		reset_control_assert(ssi->rstc);
+		return dev_err_probe(ssi->dev, ret, "pm_runtime_resume_and_get failed\n");
+	}
 
 	spin_lock_init(&ssi->lock);
 	dev_set_drvdata(&pdev->dev, ssi);