From: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
[ Upstream commit 817b8b9c5396d2b2d92311b46719aad5d3339dbe ]
When hid_parse() in elo_probe() fails, it forgets to call usb_put_dev to
decrease the refcount.
Fix this by adding usb_put_dev() in the error handling code of elo_probe().
Fixes: fbf42729d0e9 ("HID: elo: update the reference count of the usb device structure")
Reported-by: syzkaller <syzkaller@xxxxxxxxxxxxxxxx>
Signed-off-by: Dongliang Mu <mudongliangabcd@xxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/hid/hid-elo.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c
index 8e960d7b233b3..9b42b0cdeef06 100644
--- a/drivers/hid/hid-elo.c
+++ b/drivers/hid/hid-elo.c
@@ -262,6 +262,7 @@ static int elo_probe(struct hid_device *hdev, const struct hid_device_id *id)
return 0;
err_free:
+ usb_put_dev(udev);
kfree(priv);
return ret;
}
--
2.34.1
