diff mbox series

[v2] ASoC: samsung: Fix error handling in aries_audio_probe

Message ID 20220603130640.37624-1-linmq006@gmail.com (mailing list archive)
State Accepted
Commit 3e2649c5e8643bea0867bb1dd970fedadb0eb7f3
Headers show
Series [v2] ASoC: samsung: Fix error handling in aries_audio_probe | expand

Commit Message

Miaoqian Lin June 3, 2022, 1:06 p.m. UTC
of_get_child_by_name() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
This function is missing of_node_put(cpu) in the error path.
Fix this by goto out label. of_node_put() will check NULL pointer.

Fixes: 7a3a7671fa6c ("ASoC: samsung: Add driver for Aries boards")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
changes in v2:
- update Fixes tag.
v1 Link: https://lore.kernel.org/r/20220602130218.14901-1-linmq006@gmail.com
---
 sound/soc/samsung/aries_wm8994.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Krzysztof Kozlowski June 5, 2022, 2:48 p.m. UTC | #1
On 03/06/2022 15:06, Miaoqian Lin wrote:
> of_get_child_by_name() returns a node pointer with refcount
> incremented, we should use of_node_put() on it when not need anymore.
> This function is missing of_node_put(cpu) in the error path.
> Fix this by goto out label. of_node_put() will check NULL pointer.
> 
> Fixes: 7a3a7671fa6c ("ASoC: samsung: Add driver for Aries boards")
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof
Mark Brown June 7, 2022, 10:45 a.m. UTC | #2
On Fri, 3 Jun 2022 17:06:39 +0400, Miaoqian Lin wrote:
> of_get_child_by_name() returns a node pointer with refcount
> incremented, we should use of_node_put() on it when not need anymore.
> This function is missing of_node_put(cpu) in the error path.
> Fix this by goto out label. of_node_put() will check NULL pointer.
> 
> 

Applied to

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

Thanks!

[1/1] ASoC: samsung: Fix error handling in aries_audio_probe
      commit: 3e2649c5e8643bea0867bb1dd970fedadb0eb7f3

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/samsung/aries_wm8994.c b/sound/soc/samsung/aries_wm8994.c
index bb0cf4244e00..edee02d7f100 100644
--- a/sound/soc/samsung/aries_wm8994.c
+++ b/sound/soc/samsung/aries_wm8994.c
@@ -628,8 +628,10 @@  static int aries_audio_probe(struct platform_device *pdev)
 		return -EINVAL;
 
 	codec = of_get_child_by_name(dev->of_node, "codec");
-	if (!codec)
-		return -EINVAL;
+	if (!codec) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	for_each_card_prelinks(card, i, dai_link) {
 		dai_link->codecs->of_node = of_parse_phandle(codec,