[PATCH] staging: mt7621-pinctrl: Add of_node_put() before return

[PATCH] staging: mt7621-pinctrl: Add of_node_put() before return

[Nishka Dasgupta]

Each iteration of for_each_compatible_node puts the previous node, but
in the case of a return from the middle of the loop, there is no put,
thus causing a memory leak. Add an of_node_put before the return.
Issue found with Coccinelle.

Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
---
 drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c b/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
index 9b52d44abef1..d0f06790d38f 100644
--- a/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
+++ b/drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
@@ -358,12 +358,15 @@ static int rt2880_pinmux_probe(struct platform_device *pdev)
 		gpiobase = of_get_property(np, "ralink,gpio-base", NULL);
 		if (!ngpio || !gpiobase) {
 			dev_err(&pdev->dev, "failed to load chip info\n");
+			of_node_put(np);
 			return -EINVAL;
 		}
 
 		range = devm_kzalloc(p->dev, sizeof(*range), GFP_KERNEL);
-		if (!range)
+		if (!range) {
+			of_node_put(np);
 			return -ENOMEM;
+		}
 		range->name = "pio";
 		range->npins = __be32_to_cpu(*ngpio);
 		range->base = __be32_to_cpu(*gpiobase);
-- 
2.19.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel