Thread (77 messages) 77 messages, 4 authors, 2021-09-19

[PATCH v2 11/46] mfd: ti_am335x_tscadc: Ensure a balanced number of node get/put

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STALE1851d SUPERSEDED

From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: 2021-09-02 21:52:16
Also in: linux-devicetree, linux-iio, linux-omap
Subsystem: multifunction devices (mfd), the rest · Maintainers: Lee Jones, Linus Torvalds

Revision v2 of 5 in this series.

Revisions (5)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v6 [diff vs current]
of_node_put() should be called after a successful of_get_child_by_name().

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 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");
-- 
2.27.0
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