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leds: netxbig: Fix an OF node reference leak in netxbig_leds_get_of_pdata()

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[ Upstream commit 0508316be63bb735f59bdc8fe4527cadb62210ca ]

netxbig_leds_get_of_pdata() does not release the OF node obtained by
of_parse_phandle() when of_find_device_by_node() fails. Add an
of_node_put() call to fix the leak.

This bug was found by an experimental static analysis tool that I am
developing.

Fixes: 9af512e819 ("leds: netxbig: Convert to use GPIO descriptors")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Link: https://lore.kernel.org/r/20241216074923.628509-1-joe@pf.is.s.u-tokyo.ac.jp
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Joe Hattori
2024-12-16 16:49:23 +09:00
committed by Greg Kroah-Hartman
parent 6189035dbb
commit ea1ea09154
1 changed files with 1 additions and 0 deletions
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drivers/leds/leds-netxbig.c
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@@ -440,6 +440,7 @@ static int netxbig_leds_get_of_pdata(struct device *dev,
} }
gpio_ext_pdev = of_find_device_by_node(gpio_ext_np); gpio_ext_pdev = of_find_device_by_node(gpio_ext_np);
if (!gpio_ext_pdev) { if (!gpio_ext_pdev) {
of_node_put(gpio_ext_np);
dev_err(dev, "Failed to find platform device for gpio-ext\n"); dev_err(dev, "Failed to find platform device for gpio-ext\n");
return -ENODEV; return -ENODEV;
} }