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List: linux-can
Subject: Re: [PATCH] can: softing_cs: fix memleak on registration failure
From: Greg KH <gregkh () linuxfoundation ! org>
Date: 2021-12-22 11:05:20
Message-ID: YcMGcBqkSaZzo7uq () kroah ! com
[Download RAW message or body]
On Wed, Dec 22, 2021 at 11:48:43AM +0100, Johan Hovold wrote:
> In case device registration fails during probe, the driver state and the
> embedded platform device structure needs to be freed using
> platform_device_put() to properly free all resources (e.g. the device
> name).
>
> Fixes: 0a0b7a5f7a04 ("can: add driver for Softing card")
> Cc: stable@vger.kernel.org # 2.6.38
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---
> drivers/net/can/softing/softing_cs.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/can/softing/softing_cs.c b/drivers/net/can/softing/softing_cs.c
> index 2e93ee792373..e5c939b63fa6 100644
> --- a/drivers/net/can/softing/softing_cs.c
> +++ b/drivers/net/can/softing/softing_cs.c
> @@ -293,7 +293,7 @@ static int softingcs_probe(struct pcmcia_device *pcmcia)
> return 0;
>
> platform_failed:
> - kfree(dev);
> + platform_device_put(pdev);
> mem_failed:
> pcmcia_bad:
> pcmcia_failed:
> --
> 2.32.0
>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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