This is a note to let you know that I've just added the patch titled
extcon: Fix attached value returned by is_extcon_changed
to the 4.2-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:
extcon-fix-attached-value-returned-by-is_extcon_changed.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From f4513b065f7dbd37224226ef6e44b09eff742776 Mon Sep 17 00:00:00 2001
From: Hans de Goede <[email protected]>
Date: Mon, 24 Aug 2015 00:35:36 +0200
Subject: extcon: Fix attached value returned by is_extcon_changed
From: Hans de Goede <[email protected]>
commit f4513b065f7dbd37224226ef6e44b09eff742776 upstream.
is_extcon_changed should only check the idx-th bit of new, not
the entirety of new when setting attached.
This fixes extcon sending notifications that a cable was inserted when
it gets removed while another cable is still connected.
Signed-off-by: Hans de Goede <[email protected]>
Signed-off-by: Chanwoo Choi <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/extcon/extcon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -159,7 +159,7 @@ static int find_cable_index_by_name(stru
static bool is_extcon_changed(u32 prev, u32 new, int idx, bool *attached)
{
if (((prev >> idx) & 0x1) != ((new >> idx) & 0x1)) {
- *attached = new ? true : false;
+ *attached = ((new >> idx) & 0x1) ? true : false;
return true;
}
Patches currently in stable-queue which might be from [email protected] are
queue-4.2/extcon-fix-attached-value-returned-by-is_extcon_changed.patch
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