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authorYangtao Li <tiny.windzz@gmail.com>2018-11-21 19:06:15 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-27 11:08:15 +0300
commit20d8e8611eb0596047fd4389be7a7203a883b9bf (patch)
tree4858023d9fedd8445d5803b2d2dda5024479fdff /drivers/tty/serial/sunsu.c
parent3c81ba9242b79adc8a2e569815ec3b0caa3e03bf (diff)
downloadlinux-20d8e8611eb0596047fd4389be7a7203a883b9bf.tar.xz
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>
Diffstat (limited to 'drivers/tty/serial/sunsu.c')
-rw-r--r--drivers/tty/serial/sunsu.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 6cf3e9b0728f..4a27c0114d50 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -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)