[PATCH v2 0/3] iio: light: gp2ap002: runtime PM and error path fixes

From: Nikhil Gautam

Date: Wed Jul 22 2026 - 12:42:12 EST


Hi,

This series fixes three issues in the gp2ap002 driver, all present
since the driver was introduced.

Patch 1 fixes an unbalanced runtime PM reference count reachable from
userspace by writing the event enable attribute twice with the same
value, as the IIO core does not deduplicate such writes.

Patch 2 fixes the runtime suspend error path leaving the IRQ disable
depth unbalanced, permanently disabling proximity events after a
failed suspend.

Patch 3 fixes regulator enable leaks in the runtime resume error
paths, which matters as the supplies may be shared with other
devices.

Regards,
Nikhil Gautam

Changes in v2:
- Removed new lines between Tags as per Andy's comment
- Removed dup call pm_runtime_mark_last_busy() in
gp2ap002_write_event_config() as already handled in
pm_runtime_put_autosuspend() as per Andy's comment

Nikhil Gautam (3):
iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event
writes
iio: light: gp2ap002: re-enable irq if runtime suspend fails
iio: light: gp2ap002: Fix regulator leaks in runtime resume error path

drivers/iio/light/gp2ap002.c | 24 ++++++++++++++++++------
1 file changed, 18 insertions(+), 6 deletions(-)

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2.39.5