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path: root/drivers/input/serio/serio.c
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Diffstat (limited to 'drivers/input/serio/serio.c')
-rw-r--r--drivers/input/serio/serio.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 960fae3c3cea..480fdc5d20b3 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -538,8 +538,12 @@ static void serio_init_port(struct serio *serio)
"serio%ld", (long)atomic_inc_return(&serio_no) - 1);
serio->dev.bus = &serio_bus;
serio->dev.release = serio_release_port;
- if (serio->parent)
+ if (serio->parent) {
serio->dev.parent = &serio->parent->dev;
+ serio->depth = serio->parent->depth + 1;
+ } else
+ serio->depth = 0;
+ lockdep_set_subclass(&serio->lock, serio->depth);
}
/*