linux-kernel - [PATCH v1 1/1] i2c: robotfuzz-osif: Propagate parent device to I2C core

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Message-Id: <20220204151726.8924-1-andriy.shevchenko@linux.intel.com>
Date:   Fri,  4 Feb 2022 17:17:26 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Johan Hovold <johan@...nel.org>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Wolfram Sang <wsa@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        syzbot+0591ccf54ee05344e4eb@...kaller.appspotmail.com
Subject: [PATCH v1 1/1] i2c: robotfuzz-osif: Propagate parent device to I2C core

I2C core might use parent device to retrieve properties of
the controller. Propagate parent device for that.

Fixes: 83e53a8f120f ("i2c: Add bus driver for for OSIF USB i2c device.")
Reported-by: syzbot+0591ccf54ee05344e4eb@...kaller.appspotmail.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/i2c/busses/i2c-robotfuzz-osif.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/busses/i2c-robotfuzz-osif.c b/drivers/i2c/busses/i2c-robotfuzz-osif.c
index 66dfa211e736..bfbfa0d07bb2 100644
--- a/drivers/i2c/busses/i2c-robotfuzz-osif.c
+++ b/drivers/i2c/busses/i2c-robotfuzz-osif.c
@@ -128,6 +128,7 @@ MODULE_DEVICE_TABLE(usb, osif_table);
 static int osif_probe(struct usb_interface *interface,
 			     const struct usb_device_id *id)
 {
+	struct device *dev = &interface->dev;
 	int ret;
 	struct osif_priv *priv;
 	u16 version;
@@ -145,6 +146,7 @@ static int osif_probe(struct usb_interface *interface,
 	priv->adapter.class = I2C_CLASS_HWMON;
 	priv->adapter.algo = &osif_algorithm;
 	priv->adapter.algo_data = priv;
+	priv->adapter.dev.parent = dev;
 	snprintf(priv->adapter.name, sizeof(priv->adapter.name),
 		 "OSIF at bus %03d device %03d",
 		 priv->usb_dev->bus->busnum, priv->usb_dev->devnum);
-- 
2.34.1