[PATCH v2 06/11] i2c: isch: Utilize temporary variable to hold device pointer

Andy Shevchenko
2024-09-16T12:02:53Z

Introduce a temporary variable to hold a device pointer.
It can be utilized in the ->probe() and save a bit of LoCs.
To make it consistent, rename currently used dev to pdev.

While at it, convert the only error message to dev_err_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/i2c/busses/i2c-isch.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c
index d752f822b52e..d0098b7139a0 100644
--- a/drivers/i2c/busses/i2c-isch.c
+++ b/drivers/i2c/busses/i2c-isch.c
@@ -270,27 +270,26 @@ static const struct i2c_algorithm smbus_algorithm = {
.functionality = sch_func,
};

-static int smbus_sch_probe(struct platform_device *dev)
+static int smbus_sch_probe(struct platform_device *pdev)
{
+ struct device *dev = &pdev->dev;
struct sch_i2c *priv;
struct resource *res;

- priv = devm_kzalloc(&dev->dev, sizeof(*priv), GFP_KERNEL);
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;

- res = platform_get_resource(dev, IORESOURCE_IO, 0);
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!res)
return -EBUSY;

- priv->smba = devm_ioport_map(&dev->dev, res->start, resource_size(res));
- if (!priv->smba) {
- dev_err(&dev->dev, "SMBus region %pR already in use!\n", res);
- return -EBUSY;
- }
+ priv->smba = devm_ioport_map(dev, res->start, resource_size(res));
+ if (!priv->smba)
+ return dev_err_probe(dev, -EBUSY, "SMBus region %pR already in use!\n", res);

/* set up the sysfs linkage to our parent device */
- priv->adapter.dev.parent = &dev->dev;
+ priv->adapter.dev.parent = dev;
priv->adapter.owner = THIS_MODULE,
priv->adapter.class = I2C_CLASS_HWMON,
priv->adapter.algo = &smbus_algorithm,
@@ -298,7 +297,7 @@ static int smbus_sch_probe(struct platform_device *dev)
snprintf(priv->adapter.name, sizeof(priv->adapter.name),
"SMBus SCH adapter at %04x", (unsigned short)res->start);

- return devm_i2c_add_adapter(&dev->dev, &priv->adapter);
+ return devm_i2c_add_adapter(dev, &priv->adapter);
}

static struct platform_driver smbus_sch_driver = {
--
2.43.0.rc1.1336.g36b5255a03ac