From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AB8JxZqGQFVmqBTSNXwT3+vHnNDhkFGKzuXjYh4sgGvMGYnvPzxybWpTVkfDZ0ZD0yWUUL/Dhiqp ARC-Seal: i=1; a=rsa-sha256; t=1524652682; cv=none; d=google.com; s=arc-20160816; b=Gc8bxg0AIaZjl0l50tnCc/kviZ8hVLBZi1OoTGSes0PCSd0Xs+XQo6dyhdrLbLVNju uK97SlMEEV1Vn27wHNfeHBIUYZeEanXuQHSmaYvufVg07dcK5P/rzYI4ysYI3MEZKayL 8+RPZCnkMWtEtgCMDQeM/zgwvVvPpKGaDEhLFuC04BevB+m5TxSM+TY5lAzG1XUpBvbk fH9jr8nDSxA/ZcF/sdRSD32szfPSguvm7/KiJGCFbOdqL+lsrDj/4TLjRAXwgvLNcais Hr7C0Oh171wlBnjtja29wdqt/apvDWzOXIq/o0iE++rN4rwVfdpXa77mcHu6B408PATE ZgKA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=mime-version:user-agent:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=lvRmiAXZAqfwAypE1SGggqjy27DNSac9JGWeFJdEn34=; b=L9fLHQghS9U4RNlZdMsDft/p5fYxgSIZeQgWYM6Q5uR4do0jEaBCNiEcm/gNmwnCZ4 6EuYK1cxgIxaXgsQgGjJILVhmWDhscLKRPCJdtmVUhkq1m7g+RPJtRVR6rErP7SQrw5J 1YGHRZR04ZFez9NhLqCMf5nYG7wjU3zsh5V4TAWPO/QM/EfzTQU0vx1b7x5bZyS1lbm5 TNsq5PxifhMoYOCsHgkWoJpheo3HbNLaiIrUcxSd4I2M46JO6eLCYWBlRPY037hdPMOn 1UmFVrXuwntvibqI9Rt7Z39BwH1D7C1PbRQdVf6wz7KYWOxX5UQ7+RdImu8dw2LqML12 PshQ== ARC-Authentication-Results: i=1; mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org Authentication-Results: mx.google.com; spf=softfail (google.com: domain of transitioning gregkh@linuxfoundation.org does not designate 90.92.61.202 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Gerd Hoffmann , Alex Williamson , Zhenyu Wang Subject: [PATCH 4.14 007/183] drm/i915/gvt: throw error on unhandled vfio ioctls Date: Wed, 25 Apr 2018 12:33:47 +0200 Message-Id: <20180425103242.903050776@linuxfoundation.org> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180425103242.532713678@linuxfoundation.org> References: <20180425103242.532713678@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-LABELS: =?utf-8?b?IlxcU2VudCI=?= X-GMAIL-THRID: =?utf-8?q?1598713951186925368?= X-GMAIL-MSGID: =?utf-8?q?1598714210901442376?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Gerd Hoffmann commit 9f591ae60e1be026901398ef99eede91237aa3a1 upstream. On unknown/unhandled ioctls the driver should return an error, so userspace knows it tried to use something unsupported. Cc: stable@vger.kernel.org Signed-off-by: Gerd Hoffmann Reviewed-by: Alex Williamson Signed-off-by: Zhenyu Wang Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/i915/gvt/kvmgt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1153,7 +1153,7 @@ static long intel_vgpu_ioctl(struct mdev return 0; } - return 0; + return -ENOTTY; } static ssize_t