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iio: sw-trigger: Fix config group initialization 

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 trigger creation will result in undefined
behaviour when configfs is built as a mdoule since the configfs group for
the trigger is not properly initialized.

Fixes: b662f809d4 ("iio: core: Introduce IIO software triggers")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
steinar/wifi_calib_4_9_kernel
Lars-Peter Clausen 2016-07-11 13:50:01 +02:00 committed by Jonathan Cameron
parent 776b645315
commit b2f0c09664
1 changed files with 1 additions and 1 deletions
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2
include/linux/iio/sw_trigger.h
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@ -62,7 +62,7 @@ void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
const char *name,
struct config_item_type *type)
{
#ifdef CONFIG_CONFIGFS_FS
#if IS_ENABLED(CONFIG_CONFIGFS_FS)
config_group_init_type_name(&t->group, name, type);
#endif
}