From 42bed34c364786b3757f9d788d8ed39120e8f1b5 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 27 Feb 2013 09:52:47 +1000
Subject: [PATCH] drm/nouveau/i2c: drop parent refcount when creating ports
Fixes issue where i2c subdev never gets destroyed due to its subobjects
holding references. This will mean the i2c subdev refcount goes
negative during its destruction, but this isn't an issue in practice.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/nouveau/core/subdev/i2c/base.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
index a114a0ed7e98..2e98e8a3f1aa 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c
@@ -142,6 +142,7 @@ nouveau_i2c_port_create_(struct nouveau_object *parent,
/* drop port's i2c subdev refcount, i2c handles this itself */
if (ret == 0) {
list_add_tail(&port->head, &i2c->ports);
+ atomic_dec(&parent->refcount);
atomic_dec(&engine->refcount);
}