The function i2c_match_id() is used to fetch the matching ID from
the i2c_device_id table. This is often used to then retrieve the
matching driver_data. This can be done in one step with the helper
i2c_get_match_data().

This helper has another benefit:
 * It doesn't need the i2c_device_id passed in so we do not need
   to have that forward declared, allowing us to remove that.

Signed-off-by: Andrew Davis <afd@ti.com>
---
 drivers/hwmon/pmbus/pmbus.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/hwmon/pmbus/pmbus.c b/drivers/hwmon/pmbus/pmbus.c
index 920cd5408141a..d1844c7a51eef 100644
--- a/drivers/hwmon/pmbus/pmbus.c
+++ b/drivers/hwmon/pmbus/pmbus.c
@@ -20,8 +20,6 @@ struct pmbus_device_info {
 	u32 flags;
 };
 
-static const struct i2c_device_id pmbus_id[];
-
 /*
  * Find sensor groups and status registers on each page.
  */
@@ -174,7 +172,7 @@ static int pmbus_probe(struct i2c_client *client)
 	if (!info)
 		return -ENOMEM;
 
-	device_info = (struct pmbus_device_info *)i2c_match_id(pmbus_id, client)->driver_data;
+	device_info = (struct pmbus_device_info *)i2c_get_match_data(client);
 	if (device_info->flags) {
 		pdata = devm_kzalloc(dev, sizeof(struct pmbus_platform_data),
 				     GFP_KERNEL);
-- 
2.39.2