This is a note to let you know that I've just added the patch titled
mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
to the 4.19-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:
mcb-mcb-parse-fix-error-handing-in-chameleon_parse_g.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 64035365d694d0bad5918c291d6a9a204b675ab9
Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Date: Fri Dec 2 01:38:50 2022 -0800
mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
[ Upstream commit 728ac3389296caf68638628c987aeae6c8851e2d ]
If mcb_device_register() returns error in chameleon_parse_gdd(), the refcount
of bus and device name are leaked. Fix this by calling put_device() to give up
the reference, so they can be released in mcb_release_dev() and kobject_cleanup().
Fixes: 3764e82e5150 ("drivers: Introduce MEN Chameleon Bus")
Reviewed-by: Johannes Thumshirn <jth@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Signed-off-by: Johannes Thumshirn <jth@xxxxxxxxxx>
Link: https://lore.kernel.org/r/ebfb06e39b19272f0197fa9136b5e4b6f34ad732.1669624063.git.johannes.thumshirn@xxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mcb/mcb-parse.c b/drivers/mcb/mcb-parse.c
index 7369bda3442f..3636349648b4 100644
--- a/drivers/mcb/mcb-parse.c
+++ b/drivers/mcb/mcb-parse.c
@@ -107,7 +107,7 @@ static int chameleon_parse_gdd(struct mcb_bus *bus,
return 0;
err:
- mcb_free_dev(mdev);
+ put_device(&mdev->dev);
return ret;
}
