linux-kernel - Re: [PATCH 2/2] tty:serial:mvebu-uart:fix a wrong return

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Date:   Tue, 3 Mar 2020 08:57:28 +0100
From:   Jiri Slaby <jslaby@...e.cz>
To:     tangbin <tangbin@...s.chinamobile.com>, gregkh@...uxfoundation.org
Cc:     linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] tty:serial:mvebu-uart:fix a wrong return

On 03. 03. 20, 8:13, tangbin wrote:
> in this place,the right return should be
> return PTR_ERR(),not return -PTR_ERR()

One because missing. Like ", because PTR_ERR already returns a negative
error and the probe function is expected to return a negative value in
case of error."

Acked-by: Jiri Slaby <jslaby@...e.cz>

> Signed-off-by: tangbin <tangbin@...s.chinamobile.com>
> ---
>  drivers/tty/serial/mvebu-uart.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
> index c12a12556..4e9a59071 100644
> --- a/drivers/tty/serial/mvebu-uart.c
> +++ b/drivers/tty/serial/mvebu-uart.c
> @@ -851,7 +851,7 @@ static int mvebu_uart_probe(struct platform_device *pdev)
>  
>  	port->membase = devm_ioremap_resource(&pdev->dev, reg);
>  	if (IS_ERR(port->membase))
> -		return -PTR_ERR(port->membase);
> +		return PTR_ERR(port->membase);
>  
>  	mvuart = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_uart),
>  			      GFP_KERNEL);
> 


-- 
js
suse labs