iio: sw-device: Fix config group initialization

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commit c42f821861 upstream.

Use the IS_ENABLED() helper macro to ensure that the configfs group is
initialized either when configfs is built-in or when configfs is built as a
module. Otherwise software device creation will result in undefined
behaviour when configfs is built as a module since the configfs group for
the device not properly initialized.

Similar to commit b2f0c09664 ("iio: sw-trigger: Fix config group
initialization").

Fixes: 0f3a8c3f34 ("iio: Add support for creating IIO devices via configfs")
Reported-by: Miguel Robles <miguel.robles@farole.net>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Daniel Baluta <daniel.baluta@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Lars-Peter Clausen 2017-03-09 17:20:04 +01:00 • committed by Greg Kroah-Hartman

parent ec271b0e05

commit cf43d679cc

1 changed files with 1 additions and 1 deletions

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include/linux/iio/sw_device.h

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