linux-kernel - Re: [PATCH v39 15/24] x86/sgx: Add SGX_IOC_ENCLAVE

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Message-ID: <91637b13-c0ee-82bd-05cd-5ce848004eae@intel.com>
Date:   Tue, 20 Oct 2020 08:48:54 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>, x86@...nel.org,
        linux-sgx@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        Jethro Beekman <jethro@...tanix.com>,
        Darren Kenny <darren.kenny@...cle.com>,
        Andy Lutomirski <luto@...nel.org>, akpm@...ux-foundation.org,
        andriy.shevchenko@...ux.intel.com, asapek@...gle.com, bp@...en8.de,
        cedric.xing@...el.com, chenalexchen@...gle.com,
        conradparker@...gle.com, cyhanish@...gle.com,
        haitao.huang@...el.com, kai.huang@...el.com, kai.svahn@...el.com,
        kmoy@...gle.com, ludloff@...gle.com, nhorman@...hat.com,
        npmccallum@...hat.com, puiterwijk@...hat.com, rientjes@...gle.com,
        sean.j.christopherson@...el.com, tglx@...utronix.de,
        yaozhangx@...gle.com, mikko.ylinen@...el.com
Subject: Re: [PATCH v39 15/24] x86/sgx: Add SGX_IOC_ENCLAVE_PROVISION

>  int __init sgx_drv_init(void)
>  {
>  	unsigned int eax, ebx, ecx, edx;
> @@ -181,5 +192,12 @@ int __init sgx_drv_init(void)
>  		return ret;
>  	}
>  
> +	ret = misc_register(&sgx_dev_provision);
> +	if (ret) {
> +		pr_err("Creating /dev/sgx/provision failed with %d.\n", ret);
> +		misc_deregister(&sgx_dev_enclave);
> +		return ret;
> +	}
> +

Isn't it a *bit* too specific to say that a device file failed to be
created?  Do other misc devices use this kind of message?