This is a note to let you know that I've just added the patch titled
mfd: dln2: Fix double put in dln2_probe
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:
mfd-dln2-fix-double-put-in-dln2_probe.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 6ecaa226920c91e27906bd53a35a4d2fe55df10c
Author: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Date: Mon Sep 25 10:41:33 2023 +0800
mfd: dln2: Fix double put in dln2_probe
[ Upstream commit 759c409bc5fc496cbc22cd0b392d3cbb0c0e23eb ]
The dln2_free() already contains usb_put_dev(). Therefore,
the redundant usb_put_dev() before dln2_free() may lead to
a double free.
Fixes: 96da8f148396 ("mfd: dln2: Fix memory leak in dln2_probe()")
Signed-off-by: Dinghao Liu <dinghao.liu@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230925024134.9683-1-dinghao.liu@xxxxxxxxxx
Signed-off-by: Lee Jones <lee@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c
index 37217e01f27c0..fe614ba5fec90 100644
--- a/drivers/mfd/dln2.c
+++ b/drivers/mfd/dln2.c
@@ -800,7 +800,6 @@ static int dln2_probe(struct usb_interface *interface,
dln2_stop_rx_urbs(dln2);
out_free:
- usb_put_dev(dln2->usb_dev);
dln2_free(dln2);
return ret;
