Re: [PATCH v2] s390/netiucv: handle memory allocation failure in conn_action_start()

[Markus Elfring <Markus.Elfring@web.de>]

> … Thus add a corresponding return value

I suggest to move this sentence into a subsequent text line.


>      … This prevent null pointer dereferenced kernel panic when memory
> exhausted situation with the netiucv driver operating as an FSM state
> in "conn_action_start".

Do you find an improved wording still relevant for a separate paragraph?


> Fixes: eebce3856737 ("[S390]: Adapt netiucv driver to new IUCV API")
> Cc: linux-s390@vger.kernel.org

Would you like to specify a “stable tag”?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/stable-kernel-rules.rst?h=v6.10-rc5#n34


> ---

I would appreciate a version description behind the marker line.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.10-rc5#n713


…
> +++ b/drivers/s390/net/netiucv.c
> @@ -855,6 +855,9 @@ static void conn_action_start(fsm_instance *fi, int event, void *arg)
>
>  	fsm_newstate(fi, CONN_STATE_SETUPWAIT);
>  	conn->path = iucv_path_alloc(NETIUCV_QUEUELEN_DEFAULT, 0, GFP_KERNEL);
> +	if (!conn->path)
> +		return;
…

Would the following statement variant become more appropriate here?

+		return -ENOMEM;


Regards,
Markus