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authorYang Yingliang <yangyingliang@huawei.com>2022-12-03 15:10:27 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-12-31 13:32:42 +0100
commit82d1211f673bbdc822eaf1dbcbf1f2ae06556964 (patch)
tree9838722666538a1a2e32acfd80063a84ee71146b /drivers/usb
parent94cca9c339412b57bee4dfb854e1e4b409322689 (diff)
downloadlinux-82d1211f673bbdc822eaf1dbcbf1f2ae06556964.tar.gz
usb: typec: wusb3801: fix fwnode refcount leak in wusb3801_probe()
[ Upstream commit dc18a4c7b3bd447cef2395deeb1f6ac16dfaca0e ]

I got the following report while doing fault injection test:

  OF: ERROR: memory leak, expected refcount 1 instead of 4,
  of_node_get()/of_node_put() unbalanced - destroy cset entry:
  attach overlay node /i2c/tcpc@60/connector

If wusb3801_hw_init() fails, fwnode_handle_put() needs be called to
avoid refcount leak.

Fixes: d016cbe4d7ac ("usb: typec: Support the WUSB3801 port controller")
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221203071027.3808308-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/typec/wusb3801.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/typec/wusb3801.c b/drivers/usb/typec/wusb3801.c
index 3cc7a15ecbd3..a43a18d4b02e 100644
--- a/drivers/usb/typec/wusb3801.c
+++ b/drivers/usb/typec/wusb3801.c
@@ -364,7 +364,7 @@ static int wusb3801_probe(struct i2c_client *client)
 	/* Initialize the hardware with the devicetree settings. */
 	ret = wusb3801_hw_init(wusb3801);
 	if (ret)
-		return ret;
+		goto err_put_connector;
 
 	wusb3801->cap.revision		= USB_TYPEC_REV_1_2;
 	wusb3801->cap.accessory[0]	= TYPEC_ACCESSORY_AUDIO;