linux-kernel - [PATCH v2 1/4] media: ipu3-cio2: Don't dereference fwnode handle

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Date:   Mon, 21 Nov 2022 17:27:01 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Clément Léger <clement.leger@...tlin.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Daniel Scally <djrscally@...il.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans de Goede <hdegoede@...hat.com>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Yong Zhi <yong.zhi@...el.com>,
        Bingbu Cao <bingbu.cao@...el.com>,
        Tianshu Qiu <tian.shu.qiu@...el.com>,
        Daniel Scally <dan.scally@...asonboard.com>
Subject: [PATCH v2 1/4] media: ipu3-cio2: Don't dereference fwnode handle

Use acpi_fwnode_handle() instead of dereferencing an fwnode handle directly,
which is a better coding practice.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Tested-by: Daniel Scally <dan.scally@...asonboard.com>
Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Reviewed-by: Daniel Scally <dan.scally@...asonboard.com>
---
v2: added tags (Heikki, Daniel)

 drivers/media/pci/intel/ipu3/cio2-bridge.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/pci/intel/ipu3/cio2-bridge.c b/drivers/media/pci/intel/ipu3/cio2-bridge.c
index df6c94da2f6a..18974a72e94a 100644
--- a/drivers/media/pci/intel/ipu3/cio2-bridge.c
+++ b/drivers/media/pci/intel/ipu3/cio2-bridge.c
@@ -263,7 +263,7 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
 				      struct cio2_bridge *bridge,
 				      struct pci_dev *cio2)
 {
-	struct fwnode_handle *fwnode;
+	struct fwnode_handle *fwnode, *primary;
 	struct cio2_sensor *sensor;
 	struct acpi_device *adev;
 	acpi_status status;
@@ -322,7 +322,9 @@ static int cio2_bridge_connect_sensor(const struct cio2_sensor_config *cfg,
 		}
 
 		sensor->adev = acpi_dev_get(adev);
-		adev->fwnode.secondary = fwnode;
+
+		primary = acpi_fwnode_handle(adev);
+		primary->secondary = fwnode;
 
 		cio2_bridge_instantiate_vcm_i2c_client(sensor);
 
-- 
2.35.1