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iio: adc: adi-axi-adc: Fix refcount leak in adi_axi_adc_attach_client

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commit ada7b0c0dedafd7d059115adf49e48acba3153a8 upstream.

of_parse_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Fixes: ef04070692 ("iio: adc: adi-axi-adc: add support for AXI ADC IP core")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220524074517.45268-1-linmq006@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Miaoqian Lin 2022-05-24 11:45:17 +04:00 committed by Greg Kroah-Hartman
parent d40514d440
commit 501652a2ad
1 changed files with 3 additions and 0 deletions
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drivers/iio/adc/adi-axi-adc.c
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@ -334,16 +334,19 @@ static struct adi_axi_adc_client *adi_axi_adc_attach_client(struct device *dev)
if (!try_module_get(cl->dev->driver->owner)) {
mutex_unlock(&registered_clients_lock);
of_node_put(cln);
return ERR_PTR(-ENODEV);
}
get_device(cl->dev);
cl->info = info;
mutex_unlock(&registered_clients_lock);
of_node_put(cln);
return cl;
}
mutex_unlock(&registered_clients_lock);
of_node_put(cln);
return ERR_PTR(-EPROBE_DEFER);
}