This is a note to let you know that I've just added the patch titled
extcon: return error code on failure
to the 4.9-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-return-error-code-on-failure.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5b11ebedd6a8bb4271b796e498cd15c0fe1133b6 Mon Sep 17 00:00:00 2001
From: Pan Bian <bianpan2016@xxxxxxx>
Date: Sat, 3 Dec 2016 16:56:49 +0800
Subject: extcon: return error code on failure
From: Pan Bian <bianpan2016@xxxxxxx>
commit 5b11ebedd6a8bb4271b796e498cd15c0fe1133b6 upstream.
Function get_zeroed_page() returns a NULL pointer if there is no enough
memory. In function extcon_sync(), it returns 0 if the call to
get_zeroed_page() fails. The return value 0 indicates success in the
context, which is incosistent with the execution status. This patch
fixes the bug by returning -ENOMEM.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188611
Signed-off-by: Pan Bian <bianpan2016@xxxxxxx>
Fixes: a580982f0836e
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/extcon/extcon.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -453,7 +453,7 @@ int extcon_sync(struct extcon_dev *edev,
dev_err(&edev->dev, "out of memory in extcon_set_state\n");
kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE);
- return 0;
+ return -ENOMEM;
}
length = name_show(&edev->dev, NULL, prop_buf);
Patches currently in stable-queue which might be from bianpan2016@xxxxxxx are
queue-4.9/extcon-return-error-code-on-failure.patch
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