Add an of_node_put when a tested device node is not available. The semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // <smpl> @@ identifier f; local idexpression e; expression x; @@ e = f(...); ... when != of_node_put(e) when != x = e when != e = x when any if (<+...of_device_is_available(e)...+>) { ... when != of_node_put(e) ( return e; | + of_node_put(e); return ...; ) } // </smpl> Fixes: 896ddd600ba4 ("drivers: bus: check cci device tree node status") Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> --- This file doesn't seem to have a maintainer. drivers/bus/arm-cci.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -u -p a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c --- a/drivers/bus/arm-cci.c +++ b/drivers/bus/arm-cci.c @@ -538,8 +538,10 @@ static int cci_probe(void) struct resource res; np = of_find_matching_node(NULL, arm_cci_matches); - if (!of_device_is_available(np)) + if (!of_device_is_available(np)) { + of_node_put(np); return -ENODEV; + } ret = of_address_to_resource(np, 0, &res); if (!ret) {
