Re: [PATCH] iio: trigger: Fix error handling in viio_trigger_alloc

On Wed, Nov 05, 2025 at 05:47:14PM +0800, Ma Ke wrote:

viio_trigger_alloc() initializes the device with device_initialize() but uses kfree() directly in error paths, which bypasses the device's release callback iio_trig_release(). This could lead to memory leaks and inconsistent device state.

Replace kfree(trig) with put_device(&trig->dev) in error paths to ensure proper cleanup through the device's release callback.

Now when irq_alloc_descs() fails, trig->subirq_base becomes negative and in the release callback it will pass the

if (trig->subirq_base) {

Is it a problem?

The release function also misses mutex_destroy().