[PATCH] regulator: bq257xx: Fix device node reference leak in bq257xx_reg_dt_parse_gpio()

Felix Gu posted 1 patch 1 month, 3 weeks ago
drivers/regulator/bq257xx-regulator.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
[PATCH] regulator: bq257xx: Fix device node reference leak in bq257xx_reg_dt_parse_gpio()
Posted by Felix Gu 1 month, 3 weeks ago
In bq257xx_reg_dt_parse_gpio(), if fails to get subchild, it returns
without calling of_node_put(child), causing the device node reference
leak.

Fixes: 981dd162b635 ("regulator: bq257xx: Add bq257xx boost regulator driver")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
---
 drivers/regulator/bq257xx-regulator.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/regulator/bq257xx-regulator.c b/drivers/regulator/bq257xx-regulator.c
index fc1ccede4468..dab8f1ab4450 100644
--- a/drivers/regulator/bq257xx-regulator.c
+++ b/drivers/regulator/bq257xx-regulator.c
@@ -115,11 +115,10 @@ static void bq257xx_reg_dt_parse_gpio(struct platform_device *pdev)
 		return;
 
 	subchild = of_get_child_by_name(child, pdata->desc.of_match);
+	of_node_put(child);
 	if (!subchild)
 		return;
 
-	of_node_put(child);
-
 	pdata->otg_en_gpio = devm_fwnode_gpiod_get_index(&pdev->dev,
 							 of_fwnode_handle(subchild),
 							 "enable", 0,

---
base-commit: 779cae956c8316aebc1946ef86ca001f99658270
change-id: 20260224-bq257-5a42efcd2347

Best regards,
-- 
Felix Gu <ustc.gu@gmail.com>
Re: [PATCH] regulator: bq257xx: Fix device node reference leak in bq257xx_reg_dt_parse_gpio()
Posted by Mark Brown 1 month, 2 weeks ago
On Tue, 24 Feb 2026 19:19:03 +0800, Felix Gu wrote:
> In bq257xx_reg_dt_parse_gpio(), if fails to get subchild, it returns
> without calling of_node_put(child), causing the device node reference
> leak.
> 
> 

Applied to

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

Thanks!

[1/1] regulator: bq257xx: Fix device node reference leak in bq257xx_reg_dt_parse_gpio()
      commit: 4baaddaa44af01cd4ce239493060738fd0881835

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
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Thanks,
Mark