Re: [PATCH] usb: gadget: m66592-udc: Add check for clk_enable()
From: Greg KH
Date: Mon Dec 16 2024 - 02:56:32 EST
On Sun, Dec 15, 2024 at 03:53:58PM -0500, Mingwei Zheng wrote:
> Add check for the return value of clk_enable() to catch the potential
> error.
>
> Fixes: b4822e2317e8 ("usb: gadget: m66592-udc: Convert to use module_platform_driver()")
> Signed-off-by: Mingwei Zheng <zmw12306@xxxxxxxxx>
> Signed-off-by: Jiasheng Jiang <jiashengjiangcool@xxxxxxxxx>
Why this order of signed-off-by lines? Shouldn't yours be last? Who
wrote this patch?
> ---
> drivers/usb/gadget/udc/m66592-udc.c | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
> index a938b2af0944..bf408476a24c 100644
> --- a/drivers/usb/gadget/udc/m66592-udc.c
> +++ b/drivers/usb/gadget/udc/m66592-udc.c
> @@ -1606,7 +1606,11 @@ static int m66592_probe(struct platform_device *pdev)
> ret = PTR_ERR(m66592->clk);
> goto clean_up2;
> }
> - clk_enable(m66592->clk);
> + ret = clk_enable(m66592->clk);
> + if (ret) {
> + clk_put(m66592->clk);
> + goto clean_up2;
> + }
How did you find this and how was it tested?
thanks,
greg k-h