Re: [PATCH v2 11/46] mfd: ti_am335x_tscadc: Ensure a balanced number of node get/put
From: Jonathan Cameron <jic23@kernel.org>
Date: 2021-09-05 12:03:04
Also in:
linux-devicetree, linux-iio, linux-input
On Thu, 2 Sep 2021 23:51:09 +0200 Miquel Raynal [off-list ref] wrote:
of_node_put() should be called after a successful of_get_child_by_name(). Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
I suppose you 'could' move this to the front of the series as a fix, but it's probably not critical so fine to keep it here. Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
quoted hunk ↗ jump to hunk
--- drivers/mfd/ti_am335x_tscadc.c | 4 ++++ 1 file changed, 4 insertions(+)diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c index 858bd22c60f0..763bbc33fc3f 100644 --- a/drivers/mfd/ti_am335x_tscadc.c +++ b/drivers/mfd/ti_am335x_tscadc.c@@ -134,6 +134,7 @@ static int ti_tscadc_probe(struct platform_device *pdev) node = of_get_child_by_name(pdev->dev.of_node, "tsc"); of_property_read_u32(node, "ti,wires", &tsc_wires); of_property_read_u32(node, "ti,coordiante-readouts", &readouts); + of_node_put(node); node = of_get_child_by_name(pdev->dev.of_node, "adc"); of_property_for_each_u32(node, "ti,adc-channels", prop, cur, val) {@@ -141,10 +142,13 @@ static int ti_tscadc_probe(struct platform_device *pdev) if (val > 7) { dev_err(&pdev->dev, " PIN numbers are 0..7 (not %d)\n", val); + of_node_put(node); return -EINVAL; } } + of_node_put(node); + total_channels = tsc_wires + adc_channels; if (total_channels > 8) { dev_err(&pdev->dev, "Number of i/p channels more than 8\n");