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Subject: Re: [PATCH V3 4/4] crypto: ccp - Add SEV_INIT_EX support
To:     Peter Gonda <pgonda@google.com>
Cc:     David Rientjes <rientjes@google.com>,
        Marc Orr <marcorr@google.com>,
        Brijesh Singh <brijesh.singh@amd.com>,
        Joerg Roedel <jroedel@suse.de>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        John Allen <john.allen@amd.com>,
        "David S. Miller" <davem@davemloft.net>,
        Paolo Bonzini <pbonzini@redhat.com>,
        linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20211102142331.3753798-1-pgonda@google.com>
 <20211102142331.3753798-5-pgonda@google.com>
From:   Tom Lendacky <thomas.lendacky@amd.com>
Message-ID: <0701eb12-a60e-381f-ddd0-9ee9a0fa3edb@amd.com>
Date:   Tue, 2 Nov 2021 10:38:02 -0500
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On 11/2/21 9:23 AM, Peter Gonda wrote:
> From: David Rientjes <rientjes@google.com>
> 
> +
> +	nread = kernel_read(fp, sev_init_ex_nv_address, NV_LENGTH, NULL);

Not sure if you missed the previous comment, but kernel_read can return an 
error, shouldn't it be checked and fail on error?

Thanks,
Tom

> +	dev_dbg(psp_master->dev, "SEV: read %ld bytes from NV file\n", nread);
> +	filp_close(fp, NULL);
> +
> +	return 0;
> +}
> +