linux-kernel - Re: [PATCH v1] misc: tps6594-pfsm: Add NULL check in tps6594_pfsm

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Message-ID: <2025041530-clinic-genre-35f9@gregkh>
Date: Tue, 15 Apr 2025 16:13:46 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Henry Martin <bsdhenrymartin@...il.com>
Cc: arnd@...db.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] misc: tps6594-pfsm: Add NULL check in
 tps6594_pfsm_probe()

On Tue, Apr 01, 2025 at 09:34:04PM +0800, Henry Martin wrote:
> devm_kasprintf() returns NULL when memory allocation fails. Currently,
> tps6594_pfsm_probe() does not check for this case, which results in a
> NULL pointer dereference.
> 
> Add NULL check after devm_kasprintf() to prevent this issue.
> 
> Fixes: a0df3ef087f8 ("misc: tps6594-pfsm: Add driver for TI TPS6594 PFSM")
> Signed-off-by: Henry Martin <bsdhenrymartin@...il.com>
> ---
>  drivers/misc/tps6594-pfsm.c | 2 ++
>  1 file changed, 2 insertions(+)

Someone else sent this before you did, sorry:
	https://lore.kernel.org/r/20250311010511.1028269-1-chenyuan0y@gmail.com