[PATCH -next] viper_tpm_init(): fix memleak on registration failure

[linyujun (C)]

kindly ping

在 2022/9/14 11:16, Lin Yujun 写道:
> In case device registration fails, the platform device
> structure needs to be free. Use platform_device_put()
> to free all resources instead of using kfree to release
> the platform device.
>
> Fixes: 352699a3d7cc ("Basic support for the Arcom/Eurotech Viper SBC.")
> Signed-off-by: Lin Yujun <linyujun809 at huawei.com>
> ---
>   arch/arm/mach-pxa/viper.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
> index 5b43351ee840..44b2c54fb2c7 100644
> --- a/arch/arm/mach-pxa/viper.c
> +++ b/arch/arm/mach-pxa/viper.c
> @@ -829,7 +829,7 @@ static void __init viper_tpm_init(void)
>   	return;
>   
>   error_free_tpm:
> -	kfree(tpm_device);
> +	platform_device_put(tpm_device);
>   error_tpm:
>   	pr_err("viper: Couldn't %s, giving up\n", errstr);
>   }