From d378fceaafd79e0dc59d3546bda251a3058062c0 Mon Sep 17 00:00:00 2001 From: Moksh Panicker Date: Sun, 2 Aug 2026 19:07:01 +0000 Subject: [PATCH] iio: light: apds9306: fix PM reference leak in apds9306_read_data() apds9306_read_data() calls pm_runtime_resume_and_get() but several error paths return directly without calling pm_runtime_put_autosuspend(), leaking the runtime PM reference and preventing the device from autosuspending. Use PM_RUNTIME_ACQUIRE_AUTOSUSPEND() and PM_RUNTIME_ACQUIRE_ERR() to automatically handle runtime PM reference release on all return paths. Fixes: 620d1e6c7a3f ("iio: light: Add support for APDS9306 Light Sensor") Signed-off-by: Moksh Panicker Cc: stable@vger.kernel.org Signed-off-by: Jonathan Cameron --- drivers/iio/light/apds9306.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/iio/light/apds9306.c b/drivers/iio/light/apds9306.c index 5ca4c87524fe..d582bda4d847 100644 --- a/drivers/iio/light/apds9306.c +++ b/drivers/iio/light/apds9306.c @@ -469,9 +469,9 @@ static int apds9306_read_data(struct apds9306_data *data, int *val, int reg) int status = 0; u8 buff[3]; - ret = pm_runtime_resume_and_get(data->dev); - if (ret) - return ret; + PM_RUNTIME_ACQUIRE_AUTOSUSPEND(data->dev, pm); + if (PM_RUNTIME_ACQUIRE_ERR(&pm)) + return PM_RUNTIME_ACQUIRE_ERR(&pm); ret = regmap_field_read(rf->intg_time, &intg_time_idx); if (ret) @@ -535,8 +535,6 @@ static int apds9306_read_data(struct apds9306_data *data, int *val, int reg) *val = get_unaligned_le24(&buff); - pm_runtime_put_autosuspend(data->dev); - return 0; }