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IIO: industrialio-core: Checking NULL instead of IS_ERR for debugfs_create_dir()

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If defined CONFIG_DEBUG_FS, debugfs_create_dir returns NULL on failure.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Axel Lin 2012-05-03 22:56:58 +08:00 committed by Greg Kroah-Hartman
parent 5a28c87397
commit abd5a2fb39
1 changed files with 1 additions and 4 deletions
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5
drivers/iio/industrialio-core.c
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@ -227,15 +227,12 @@ static int iio_device_register_debugfs(struct iio_dev *indio_dev)
if (indio_dev->info->debugfs_reg_access == NULL)
return 0;
if (IS_ERR(iio_debugfs_dentry))
if (!iio_debugfs_dentry)
return 0;
indio_dev->debugfs_dentry =
debugfs_create_dir(dev_name(&indio_dev->dev),
iio_debugfs_dentry);
if (IS_ERR(indio_dev->debugfs_dentry))
return PTR_ERR(indio_dev->debugfs_dentry);
if (indio_dev->debugfs_dentry == NULL) {
dev_warn(indio_dev->dev.parent,
"Failed to create debugfs directory\n");