From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhenyu Wang Subject: [PATCH] drm/i915/gvt: fix error return check for copy_gma_to_hva() Date: Wed, 29 Mar 2017 11:07:53 +0800 Message-ID: <20170329030753.10324-1-zhenyuw@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org Cc: Dave Airlie List-Id: intel-gfx@lists.freedesktop.org RnJvbSBjb21taXQgNzNkZWM5NWU2YmEzICgiZHJtL2k5MTU6IEVtaXQgdG8gcmluZ2J1ZmZlciBk aXJlY3RseSIpLApjb3B5X2dtYV90b19odmEoKSBub3cgcmV0dXJucyBjb3BpZWQgZGF0YSBsZW5n dGggaW5zdGVhZCBvZiAwLCBzbwpuZWVkIHRvIGNoYW5nZSBlcnJvciByZXR1cm4gY2hlY2sgZm9y IHRoYXQuCgpOb3RlOiBMb29rcyB0aGlzIGlzIGNhdXNlZCBieSBiYWNrbWVyZ2UgY29uZmxpY3Qg cmVzb2x2aW5nLCBzbwo0LjExLXJjNCBpcyBub3QgaW1wYWN0ZWQgYXMgY29tbWl0IDczZGVjOTVl NmJhMyAoImRybS9pOTE1OiBFbWl0IHRvCnJpbmdidWZmZXIgZGlyZWN0bHkiKSBpcyBub3QgaW4g NC4xMS4gQnV0IG5lZWQgdG8gZml4IHRoaXMgYmVmb3JlIEkKY2FuIGFwcGx5IDQuMTIgc3R1ZmYg YWdhaW5zdCBkcm0taW50ZWwtbmV4dCBjb3JyZWN0bHkuCgpGaXhlczogZTVjMWZmMTQ3NTdhICgi QmFja21lcmdlIHRhZyAndjQuMTEtcmM0JyBpbnRvIGRybS1uZXh0IikKQ2M6IERhdmUgQWlybGll IDxhaXJsaWVkQHJlZGhhdC5jb20+CkNjOiBUaW5hIFpoYW5nIDx0aW5hLnpoYW5nQGludGVsLmNv bT4KU2lnbmVkLW9mZi1ieTogWmhlbnl1IFdhbmcgPHpoZW55dXdAbGludXguaW50ZWwuY29tPgot LS0KIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2d2dC9jbWRfcGFyc2VyLmMgfCA4ICsrKystLS0tCiAx IGZpbGUgY2hhbmdlZCwgNCBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdp dCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2d2dC9jbWRfcGFyc2VyLmMgYi9kcml2ZXJzL2dwdS9k cm0vaTkxNS9ndnQvY21kX3BhcnNlci5jCmluZGV4IGIzYzlhNDc4YzY1Ni4uNmY5NzJhZmJkYmMz IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9ndnQvY21kX3BhcnNlci5jCisrKyBi L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2d2dC9jbWRfcGFyc2VyLmMKQEAgLTE2NzMsNyArMTY3Myw3 IEBAIHN0YXRpYyBpbnQgcGVyZm9ybV9iYl9zaGFkb3coc3RydWN0IHBhcnNlcl9leGVjX3N0YXRl ICpzKQogCXJldCA9IGNvcHlfZ21hX3RvX2h2YShzLT52Z3B1LCBzLT52Z3B1LT5ndHQuZ2d0dF9t bSwKIAkJCSAgICAgIGdtYSwgZ21hICsgYmJfc2l6ZSwKIAkJCSAgICAgIGRzdCk7Ci0JaWYgKHJl dCkgeworCWlmIChyZXQgPCAwKSB7CiAJCWd2dF92Z3B1X2VycigiZmFpbCB0byBjb3B5IGd1ZXN0 IHJpbmcgYnVmZmVyXG4iKTsKIAkJZ290byB1bm1hcF9zcmM7CiAJfQpAQCAtMjY2Niw3ICsyNjY2 LDcgQEAgc3RhdGljIGludCBzaGFkb3dfd29ya2xvYWRfcmluZ19idWZmZXIoc3RydWN0IGludGVs X3ZncHVfd29ya2xvYWQgKndvcmtsb2FkKQogCWlmIChnbWFfaGVhZCA+IGdtYV90YWlsKSB7CiAJ CXJldCA9IGNvcHlfZ21hX3RvX2h2YSh2Z3B1LCB2Z3B1LT5ndHQuZ2d0dF9tbSwKIAkJCQkgICAg ICBnbWFfaGVhZCwgZ21hX3RvcCwgY3MpOwotCQlpZiAocmV0KSB7CisJCWlmIChyZXQgPCAwKSB7 CiAJCQlndnRfdmdwdV9lcnIoImZhaWwgdG8gY29weSBndWVzdCByaW5nIGJ1ZmZlclxuIik7CiAJ CQlyZXR1cm4gcmV0OwogCQl9CkBAIC0yNjc2LDcgKzI2NzYsNyBAQCBzdGF0aWMgaW50IHNoYWRv d193b3JrbG9hZF9yaW5nX2J1ZmZlcihzdHJ1Y3QgaW50ZWxfdmdwdV93b3JrbG9hZCAqd29ya2xv YWQpCiAKIAkvKiBjb3B5IGhlYWQgb3Igc3RhcnQgPC0+IHRhaWwgKi8KIAlyZXQgPSBjb3B5X2dt YV90b19odmEodmdwdSwgdmdwdS0+Z3R0LmdndHRfbW0sIGdtYV9oZWFkLCBnbWFfdGFpbCwgY3Mp OwotCWlmIChyZXQpIHsKKwlpZiAocmV0IDwgMCkgewogCQlndnRfdmdwdV9lcnIoImZhaWwgdG8g Y29weSBndWVzdCByaW5nIGJ1ZmZlclxuIik7CiAJCXJldHVybiByZXQ7CiAJfQpAQCAtMjczNyw3 ICsyNzM3LDcgQEAgc3RhdGljIGludCBzaGFkb3dfaW5kaXJlY3RfY3R4KHN0cnVjdCBpbnRlbF9z aGFkb3dfd2FfY3R4ICp3YV9jdHgpCiAJCQkJd2FfY3R4LT53b3JrbG9hZC0+dmdwdS0+Z3R0Lmdn dHRfbW0sCiAJCQkJZ3Vlc3RfZ21hLCBndWVzdF9nbWEgKyBjdHhfc2l6ZSwKIAkJCQltYXApOwot CWlmIChyZXQpIHsKKwlpZiAocmV0IDwgMCkgewogCQlndnRfdmdwdV9lcnIoImZhaWwgdG8gY29w eSBndWVzdCBpbmRpcmVjdCBjdHhcbiIpOwogCQlnb3RvIHVubWFwX3NyYzsKIAl9Ci0tIAoyLjEx LjAKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVs LWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=