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@xxxxxxxxxxxxxxx> know about it.
>From b2f0c09664b72b2f8c581383a9337ac3092e42c8 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@xxxxxxxxxx>
Date: Mon, 11 Jul 2016 13:50:01 +0200
Subject: iio: sw-trigger: Fix config group initialization
From: Lars-Peter Clausen <lars@xxxxxxxxxx>
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@xxxxxxxxxx>
Acked-by: Daniel Baluta <daniel.baluta@xxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxx 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
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