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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2020-05-28 16:18:58 +0200
committerWolfram Sang <wsa@kernel.org>2020-05-28 18:01:20 +0200
commit3e34b5135b39c4d530494e08d56b12f5b1396aa6 (patch)
tree826d88043900a21a892c83df646abb1e708d470e /drivers/i2c
parenti2c: nvidia-gpu: Use PTR_ERR_OR_ZERO() to simplify code (diff)
downloadlinux-3e34b5135b39c4d530494e08d56b12f5b1396aa6.tar.xz
linux-3e34b5135b39c4d530494e08d56b12f5b1396aa6.zip
i2c: acpi: Drop double check for ACPI companion device
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>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/i2c-core-acpi.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index c8f42f2037cb..2ade99b105b9 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -468,16 +468,12 @@ struct notifier_block i2c_acpi_notifier = {
struct i2c_client *i2c_acpi_new_device(struct device *dev, int index,
struct i2c_board_info *info)
{
+ struct acpi_device *adev = ACPI_COMPANION(dev);
struct i2c_acpi_lookup lookup;
struct i2c_adapter *adapter;
- struct acpi_device *adev;
LIST_HEAD(resource_list);
int ret;
- adev = ACPI_COMPANION(dev);
- if (!adev)
- return ERR_PTR(-EINVAL);
-
memset(&lookup, 0, sizeof(lookup));
lookup.info = info;
lookup.device_handle = acpi_device_handle(adev);