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i2c: acpi: Drop double check for ACPI companion device

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acpi_dev_get_resources() does perform the NULL pointer check against
ACPI companion device which is given as function parameter. Thus,
there is no need to duplicate this check in the caller.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Andy Shevchenko 2020-05-28 17:18:58 +03:00 committed by Wolfram Sang
parent ed2ac8116f
commit 3e34b5135b
1 changed files with 1 additions and 5 deletions
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6
drivers/i2c/i2c-core-acpi.c
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@ -468,16 +468,12 @@ struct notifier_block i2c_acpi_notifier = {
struct i2c_client *i2c_acpi_new_device(struct device *dev, int index, struct i2c_client *i2c_acpi_new_device(struct device *dev, int index,
struct i2c_board_info *info) struct i2c_board_info *info)
{ {
struct acpi_device *adev = ACPI_COMPANION(dev);
struct i2c_acpi_lookup lookup; struct i2c_acpi_lookup lookup;
struct i2c_adapter *adapter; struct i2c_adapter *adapter;
struct acpi_device *adev;
LIST_HEAD(resource_list); LIST_HEAD(resource_list);
int ret; int ret;
adev = ACPI_COMPANION(dev);
if (!adev)
return ERR_PTR(-EINVAL);
memset(&lookup, 0, sizeof(lookup)); memset(&lookup, 0, sizeof(lookup));
lookup.info = info; lookup.info = info;
lookup.device_handle = acpi_device_handle(adev); lookup.device_handle = acpi_device_handle(adev);