[PATCH] ASoC: Use of_property_present()

[PATCH] ASoC: Use of_property_present()

[Rob Herring (Arm)]

Use of_property_present() to test for property presence rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_property() and similar functions. of_get_property() leaks
the DT property data pointer which is a problem for dynamically
allocated nodes which may be freed.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 sound/soc/fsl/mpc5200_psc_i2s.c | 2 +-
 sound/soc/tegra/tegra_pcm.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
index af8b9d098d2d..931b430fa983 100644
--- a/sound/soc/fsl/mpc5200_psc_i2s.c
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -184,7 +184,7 @@ static int psc_i2s_of_probe(struct platform_device *op)
 
 	/* Check for the codec handle.  If it is not present then we
 	 * are done */
-	if (!of_get_property(op->dev.of_node, "codec-handle", NULL))
+	if (!of_property_present(op->dev.of_node, "codec-handle"))
 		return 0;
 
 	/* Due to errata in the dma mode; need to line up enabling
diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c
index 4bdbcd2635ef..05d59e03b1c5 100644
--- a/sound/soc/tegra/tegra_pcm.c
+++ b/sound/soc/tegra/tegra_pcm.c
@@ -213,7 +213,7 @@ int tegra_pcm_construct(struct snd_soc_component *component,
 	 * Fallback for backwards-compatibility with older device trees that
 	 * have the iommus property in the virtual, top-level "sound" node.
 	 */
-	if (!of_get_property(dev->of_node, "iommus", NULL))
+	if (!of_property_present(dev->of_node, "iommus"))
 		dev = rtd->card->snd_card->dev;
 
 	return tegra_pcm_dma_allocate(dev, rtd, tegra_pcm_hardware.buffer_bytes_max);
-- 
2.43.0

Re: [PATCH] ASoC: Use of_property_present()

[Mark Brown]

On Wed, 31 Jul 2024 13:12:57 -0600, Rob Herring (Arm) wrote:
> Use of_property_present() to test for property presence rather than
> of_get_property(). This is part of a larger effort to remove callers
> of of_get_property() and similar functions. of_get_property() leaks
> the DT property data pointer which is a problem for dynamically
> allocated nodes which may be freed.
> 
> 
> [...]

Applied to

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

Thanks!

[1/1] ASoC: Use of_property_present()
      commit: a1c8929b0ebbfd7598f038ac74fb0a28f94ade8c

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