Re: [PATCH 4/7] bus: arm-cci: add missing of_node_put after calling of_parse_phandle

From: Suzuki K Poulose
Date: Fri Jul 01 2016 - 06:38:53 EST


On 01/07/16 10:41, Peter Chen wrote:
of_node_put needs to be called when the device node which is got
from of_parse_phandle has finished using.

Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Signed-off-by: Peter Chen <peter.chen@xxxxxxx>

Thanks for the fix.

---
drivers/bus/arm-cci.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index a49b283..e7b0b8c 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -1912,9 +1912,12 @@ static int __cci_ace_get_port(struct device_node *dn, int type)
cci_portn = of_parse_phandle(dn, "cci-control-port", 0);
for (i = 0; i < nb_cci_ports; i++) {
ace_match = ports[i].type == type;
- if (ace_match && cci_portn == ports[i].dn)
+ if (ace_match && cci_portn == ports[i].dn) {
+ of_node_put(cci_portn);
return i;
+ }
}
+ of_node_put(cci_portn);

nit: Could we please do some thing like this ?
if (ace_match && cci_portn == ports[i].dn)
break;
}

of_node_put(cci_portn);
return (i < nb_cci_ports) ? i : -ENODEV ;

Either way,

Reviewed-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>