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serial/sunsu: add missing of_node_put() 

of_find_node_by_path() acquires a reference to the node
returned by it and that reference needs to be dropped by its caller.
This place is not doing this, so fix it.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yangtao Li 2018-11-21 11:06:15 -05:00 committed by Greg Kroah-Hartman
parent 3c81ba9242
commit 20d8e8611e
1 changed files with 15 additions and 5 deletions
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20
drivers/tty/serial/sunsu.c
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@ -1394,22 +1394,32 @@ static inline struct console *SUNSU_CONSOLE(void)
static enum su_type su_get_type(struct device_node *dp)
{
struct device_node *ap = of_find_node_by_path("/aliases");
enum su_type rc = SU_PORT_PORT;
if (ap) {
struct device_node *tmp;
const char *keyb = of_get_property(ap, "keyboard", NULL);
const char *ms = of_get_property(ap, "mouse", NULL);
if (keyb) {
if (dp == of_find_node_by_path(keyb))
return SU_PORT_KBD;
tmp = of_find_node_by_path(keyb);
if (tmp && dp == tmp){
rc = SU_PORT_KBD;
goto out;
}
}
if (ms) {
if (dp == of_find_node_by_path(ms))
return SU_PORT_MS;
tmp = of_find_node_by_path(ms);
if (tmp && dp == tmp){
rc = SU_PORT_MS;
goto out;
}
}
}
return SU_PORT_PORT;
out:
of_node_put(ap);
return rc;
}
static int su_probe(struct platform_device *op)