Patch "iio: sw-trigger: Fix config group initialization" has been added to the 4.7-stable tree

Patch "iio: sw-trigger: Fix config group initialization" has been added to the 4.7-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    iio: sw-trigger: Fix config group initialization

to the 4.7-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iio-sw-trigger-fix-config-group-initialization.patch
and it can be found in the queue-4.7 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From b2f0c09664b72b2f8c581383a9337ac3092e42c8 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 11 Jul 2016 13:50:01 +0200
Subject: iio: sw-trigger: Fix config group initialization

From: Lars-Peter Clausen <lars@metafoo.de>

commit b2f0c09664b72b2f8c581383a9337ac3092e42c8 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 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: b662f809d410 ("iio: core: Introduce IIO software triggers")
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 include/linux/iio/sw_trigger.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/linux/iio/sw_trigger.h
+++ b/include/linux/iio/sw_trigger.h
@@ -62,7 +62,7 @@ void iio_swt_group_init_type_name(struct
 				  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
 }


Patches currently in stable-queue which might be from lars@metafoo.de are

queue-4.7/iio-sw-trigger-fix-config-group-initialization.patch
queue-4.7/iio-core-fix-iio_val_fractional-sign-handling.patch
queue-4.7/iio-ad799x-fix-buffered-capture-for-ad7991-ad7995-ad7999.patch