iio: adc: adi-axi-adc: Fix object reference counting

When looking for a registered client to attach with, the wrong reference
counters are being grabbed. The idea is to increment the module and device
counters of the client device and not the counters of the axi device being
probed.

Fixes: ef04070692 (iio: adc: adi-axi-adc: add support for AXI ADC IP core)

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Nuno Sá 2020-07-01 14:04:41 +02:00 committed by Jonathan Cameron
parent d88de040e1
commit e9c6004eef

View File

@ -332,12 +332,12 @@ static struct adi_axi_adc_client *adi_axi_adc_attach_client(struct device *dev)
if (cl->dev->of_node != cln)
continue;
if (!try_module_get(dev->driver->owner)) {
if (!try_module_get(cl->dev->driver->owner)) {
mutex_unlock(&registered_clients_lock);
return ERR_PTR(-ENODEV);
}
get_device(dev);
get_device(cl->dev);
cl->info = info;
mutex_unlock(&registered_clients_lock);
return cl;