From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mikulas Patocka Subject: [PATCH 03/21] udl-kms: handle allocation failure Date: Sun, 03 Jun 2018 16:40:56 +0200 Message-ID: <20180603144220.065709710@twibright.com> References: <20180603144053.875668929@twibright.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from leontynka.twibright.com (109-183-129-149.tmcz.cz [109.183.129.149]) by gabe.freedesktop.org (Postfix) with ESMTPS id 18B1D6E282 for ; Sun, 3 Jun 2018 15:19:04 +0000 (UTC) Content-Disposition: inline; filename=udlkms-allocation-failure.patch List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Mikulas Patocka , Bartlomiej Zolnierkiewicz , Dave Airlie , Bernie Thompson , Ladislav Michl Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org QWxsb2NhdGlvbnMgbGFyZ2VyIHRoYW4gUEFHRV9BTExPQ19DT1NUTFlfT1JERVIgYXJlIHVucmVs aWFibGUgYW5kIHRoZXkKbWF5IGZhaWwgYW55dGltZS4gVGhpcyBwYXRjaCBmaXhlcyB0aGUgdWRs IGttcyBkcml2ZXIgc28gdGhhdCB3aGVuIGEgbGFyZ2UKYWxsb2FjdGlvbnMgZmFpbHMsIGl0IHRy aWVzIHRvIGRvIG11bHRpcGxlIHNtYWxsZXIgYWxsb2NhdGlvbnMuCgpTaWduZWQtb2ZmLWJ5OiBN aWt1bGFzIFBhdG9ja2EgPG1wYXRvY2thQHJlZGhhdC5jb20+CkNjOiBzdGFibGVAdmdlci5rZXJu ZWwub3JnCgotLS0KIGRyaXZlcnMvZ3B1L2RybS91ZGwvdWRsX21haW4uYyB8ICAgMjggKysrKysr KysrKysrKysrKysrLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDE4IGluc2VydGlvbnMoKyks IDEwIGRlbGV0aW9ucygtKQoKSW5kZXg6IGxpbnV4LTQuMTYuMTIvZHJpdmVycy9ncHUvZHJtL3Vk bC91ZGxfbWFpbi5jCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT0KLS0tIGxpbnV4LTQuMTYuMTIub3JpZy9kcml2ZXJzL2dw dS9kcm0vdWRsL3VkbF9tYWluLmMJMjAxOC0wNS0zMSAxMToxNjoxNS4wMDAwMDAwMDAgKzAyMDAK KysrIGxpbnV4LTQuMTYuMTIvZHJpdmVycy9ncHUvZHJtL3VkbC91ZGxfbWFpbi5jCTIwMTgtMDUt MzEgMTE6MTY6MTUuMDAwMDAwMDAwICswMjAwCkBAIC0yMDAsMTcgKzIwMCwyMiBAQCBzdGF0aWMg dm9pZCB1ZGxfZnJlZV91cmJfbGlzdChzdHJ1Y3QgZHJtCiBzdGF0aWMgaW50IHVkbF9hbGxvY191 cmJfbGlzdChzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LCBpbnQgY291bnQsIHNpemVfdCBzaXplKQog ewogCXN0cnVjdCB1ZGxfZGV2aWNlICp1ZGwgPSBkZXYtPmRldl9wcml2YXRlOwotCWludCBpID0g MDsKIAlzdHJ1Y3QgdXJiICp1cmI7CiAJc3RydWN0IHVyYl9ub2RlICp1bm9kZTsKIAljaGFyICpi dWY7CisJc2l6ZV90IHdhbnRlZF9zaXplID0gY291bnQgKiBzaXplOwogCiAJc3Bpbl9sb2NrX2lu aXQoJnVkbC0+dXJicy5sb2NrKTsKIAorcmV0cnk6CiAJdWRsLT51cmJzLnNpemUgPSBzaXplOwog CUlOSVRfTElTVF9IRUFEKCZ1ZGwtPnVyYnMubGlzdCk7CiAKLQl3aGlsZSAoaSA8IGNvdW50KSB7 CisJc2VtYV9pbml0KCZ1ZGwtPnVyYnMubGltaXRfc2VtLCAwKTsKKwl1ZGwtPnVyYnMuY291bnQg PSAwOworCXVkbC0+dXJicy5hdmFpbGFibGUgPSAwOworCisJd2hpbGUgKHVkbC0+dXJicy5jb3Vu dCAqIHNpemUgPCB3YW50ZWRfc2l6ZSkgewogCQl1bm9kZSA9IGt6YWxsb2Moc2l6ZW9mKHN0cnVj dCB1cmJfbm9kZSksIEdGUF9LRVJORUwpOwogCQlpZiAoIXVub2RlKQogCQkJYnJlYWs7CkBAIC0y MjYsMTEgKzIzMSwxNiBAQCBzdGF0aWMgaW50IHVkbF9hbGxvY191cmJfbGlzdChzdHJ1Y3QgZHJt CiAJCX0KIAkJdW5vZGUtPnVyYiA9IHVyYjsKIAotCQlidWYgPSB1c2JfYWxsb2NfY29oZXJlbnQo dWRsLT51ZGV2LCBNQVhfVFJBTlNGRVIsIEdGUF9LRVJORUwsCisJCWJ1ZiA9IHVzYl9hbGxvY19j b2hlcmVudCh1ZGwtPnVkZXYsIHNpemUsIEdGUF9LRVJORUwsCiAJCQkJCSAmdXJiLT50cmFuc2Zl cl9kbWEpOwogCQlpZiAoIWJ1ZikgewogCQkJa2ZyZWUodW5vZGUpOwogCQkJdXNiX2ZyZWVfdXJi KHVyYik7CisJCQlpZiAoc2l6ZSA+IFBBR0VfU0laRSkgeworCQkJCXNpemUgLz0gMjsKKwkJCQl1 ZGxfZnJlZV91cmJfbGlzdChkZXYpOworCQkJCWdvdG8gcmV0cnk7CisJCQl9CiAJCQlicmVhazsK IAkJfQogCkBAIC0yNDEsMTYgKzI1MSwxNCBAQCBzdGF0aWMgaW50IHVkbF9hbGxvY191cmJfbGlz dChzdHJ1Y3QgZHJtCiAKIAkJbGlzdF9hZGRfdGFpbCgmdW5vZGUtPmVudHJ5LCAmdWRsLT51cmJz Lmxpc3QpOwogCi0JCWkrKzsKKwkJdXAoJnVkbC0+dXJicy5saW1pdF9zZW0pOworCQl1ZGwtPnVy YnMuY291bnQrKzsKKwkJdWRsLT51cmJzLmF2YWlsYWJsZSsrOwogCX0KIAotCXNlbWFfaW5pdCgm dWRsLT51cmJzLmxpbWl0X3NlbSwgaSk7Ci0JdWRsLT51cmJzLmNvdW50ID0gaTsKLQl1ZGwtPnVy YnMuYXZhaWxhYmxlID0gaTsKLQotCURSTV9ERUJVRygiYWxsb2NhdGVkICVkICVkIGJ5dGUgdXJi c1xuIiwgaSwgKGludCkgc2l6ZSk7CisJRFJNX0RFQlVHKCJhbGxvY2F0ZWQgJWQgJWQgYnl0ZSB1 cmJzXG4iLCB1ZGwtPnVyYnMuY291bnQsIChpbnQpIHNpemUpOwogCi0JcmV0dXJuIGk7CisJcmV0 dXJuIHVkbC0+dXJicy5jb3VudDsKIH0KIAogc3RydWN0IHVyYiAqdWRsX2dldF91cmIoc3RydWN0 IGRybV9kZXZpY2UgKmRldikKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNr dG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2Ry aS1kZXZlbAo=