This is a note to let you know that I've just added the patch titled drivers/misc/c2port/c2port-duramar2150.c: checking for NULL instead of IS_ERR() 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: drivers-misc-c2port-c2port-duramar2150.c-checking-for-null-instead-of-is_err.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 8128a31eaadbcdfa37774bbd28f3f00bac69996a Mon Sep 17 00:00:00 2001 From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Date: Mon, 8 May 2017 15:55:17 -0700 Subject: drivers/misc/c2port/c2port-duramar2150.c: checking for NULL instead of IS_ERR() From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> commit 8128a31eaadbcdfa37774bbd28f3f00bac69996a upstream. c2port_device_register() never returns NULL, it uses error pointers. Link: http://lkml.kernel.org/r/20170412083321.GC3250@mwanda Fixes: 65131cd52b9e ("c2port: add c2port support for Eurotech Duramar 2150") Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Acked-by: Rodolfo Giometti <giometti@xxxxxxxx> Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/misc/c2port/c2port-duramar2150.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/misc/c2port/c2port-duramar2150.c +++ b/drivers/misc/c2port/c2port-duramar2150.c @@ -129,8 +129,8 @@ static int __init duramar2150_c2port_ini duramar2150_c2port_dev = c2port_device_register("uc", &duramar2150_c2port_ops, NULL); - if (!duramar2150_c2port_dev) { - ret = -ENODEV; + if (IS_ERR(duramar2150_c2port_dev)) { + ret = PTR_ERR(duramar2150_c2port_dev); goto free_region; } Patches currently in stable-queue which might be from dan.carpenter@xxxxxxxxxx are queue-4.9/misc-mic-double-free-on-ioctl-error-path.patch queue-4.9/drivers-misc-c2port-c2port-duramar2150.c-checking-for-null-instead-of-is_err.patch queue-4.9/iio-adc-ti_am335x_adc-allocating-too-much-in-probe.patch queue-4.9/staging-rtl8188eu-prevent-an-underflow-in-rtw_check_beacon_data.patch