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[165.204.84.11]) by smtp.gmail.com with ESMTPSA id h16sm42164qtp.1.2020.06.01.11.04.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Jun 2020 11:04:07 -0700 (PDT) From: Alex Deucher X-Google-Original-From: Alex Deucher To: amd-gfx@lists.freedesktop.org Subject: [PATCH 057/207] drm/amdgpu: avoid dereferencing a NULL pointer Date: Mon, 1 Jun 2020 14:00:09 -0400 Message-Id: <20200601180239.1267430-54-alexander.deucher@amd.com> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20200601180239.1267430-1-alexander.deucher@amd.com> References: <20200601180239.1267430-1-alexander.deucher@amd.com> MIME-Version: 1.0 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alex Deucher , Jack Xiao , =?UTF-8?q?Christian=20K=C3=B6nig?= , Hawking Zhang Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" RnJvbTogSmFjayBYaWFvIDxKYWNrLlhpYW9AYW1kLmNvbT4KCkNoZWNrIGlmIGlycV9zcmMgaXMg TlVMTCB0byBhdm9pZCBkZXJlZmVyZW5jaW5nIGEgTlVMTCBwb2ludGVyLApmb3IgTUVTIHJpbmcg aXMgdW5lY2Nlc3NhcnkgdG8gcmVjaWV2ZSBhbiBpbnRlcnJ1cHQgbm90aWZpY2F0aW9uLgoKU2ln bmVkLW9mZi1ieTogSmFjayBYaWFvIDxKYWNrLlhpYW9AYW1kLmNvbT4KQWNrZWQtYnk6IEFsZXgg RGV1Y2hlciA8YWxleGFuZGVyLmRldWNoZXJAYW1kLmNvbT4KUmV2aWV3ZWQtYnk6IEhhd2tpbmcg WmhhbmcgPEhhd2tpbmcuWmhhbmdAYW1kLmNvbT4KUmV2aWV3ZWQtYnk6IENocmlzdGlhbiBLw7Zu aWcgPGNocmlzdGlhbi5rb2VuaWdAYW1kLmNvbT4KU2lnbmVkLW9mZi1ieTogQWxleCBEZXVjaGVy IDxhbGV4YW5kZXIuZGV1Y2hlckBhbWQuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9hbWQvYW1k Z3B1L2FtZGdwdV9mZW5jZS5jIHwgMTkgKysrKysrKysrKysrLS0tLS0tLQogMSBmaWxlIGNoYW5n ZWQsIDEyIGluc2VydGlvbnMoKyksIDcgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVy cy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2ZlbmNlLmMgYi9kcml2ZXJzL2dwdS9kcm0vYW1k L2FtZGdwdS9hbWRncHVfZmVuY2UuYwppbmRleCBkODc4ZmU3ZmVlNTEuLjM0MTRlMTE5ZjBjYiAx MDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2ZlbmNlLmMKKysr IGIvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2ZlbmNlLmMKQEAgLTQxNiw3ICs0 MTYsOSBAQCBpbnQgYW1kZ3B1X2ZlbmNlX2RyaXZlcl9zdGFydF9yaW5nKHN0cnVjdCBhbWRncHVf cmluZyAqcmluZywKIAkJcmluZy0+ZmVuY2VfZHJ2LmdwdV9hZGRyID0gYWRldi0+dXZkLmluc3Rb cmluZy0+bWVdLmdwdV9hZGRyICsgaW5kZXg7CiAJfQogCWFtZGdwdV9mZW5jZV93cml0ZShyaW5n LCBhdG9taWNfcmVhZCgmcmluZy0+ZmVuY2VfZHJ2Lmxhc3Rfc2VxKSk7Ci0JYW1kZ3B1X2lycV9n ZXQoYWRldiwgaXJxX3NyYywgaXJxX3R5cGUpOworCisJaWYgKGlycV9zcmMpCisJCWFtZGdwdV9p cnFfZ2V0KGFkZXYsIGlycV9zcmMsIGlycV90eXBlKTsKIAogCXJpbmctPmZlbmNlX2Rydi5pcnFf c3JjID0gaXJxX3NyYzsKIAlyaW5nLT5mZW5jZV9kcnYuaXJxX3R5cGUgPSBpcnFfdHlwZTsKQEAg LTUzNyw4ICs1MzksOSBAQCB2b2lkIGFtZGdwdV9mZW5jZV9kcml2ZXJfZmluaShzdHJ1Y3QgYW1k Z3B1X2RldmljZSAqYWRldikKIAkJCS8qIG5vIG5lZWQgdG8gdHJpZ2dlciBHUFUgcmVzZXQgYXMg d2UgYXJlIHVubG9hZGluZyAqLwogCQkJYW1kZ3B1X2ZlbmNlX2RyaXZlcl9mb3JjZV9jb21wbGV0 aW9uKHJpbmcpOwogCQl9Ci0JCWFtZGdwdV9pcnFfcHV0KGFkZXYsIHJpbmctPmZlbmNlX2Rydi5p cnFfc3JjLAotCQkJICAgICAgIHJpbmctPmZlbmNlX2Rydi5pcnFfdHlwZSk7CisJCWlmIChyaW5n LT5mZW5jZV9kcnYuaXJxX3NyYykKKwkJCWFtZGdwdV9pcnFfcHV0KGFkZXYsIHJpbmctPmZlbmNl X2Rydi5pcnFfc3JjLAorCQkJCSAgICAgICByaW5nLT5mZW5jZV9kcnYuaXJxX3R5cGUpOwogCQlk cm1fc2NoZWRfZmluaSgmcmluZy0+c2NoZWQpOwogCQlkZWxfdGltZXJfc3luYygmcmluZy0+ZmVu Y2VfZHJ2LmZhbGxiYWNrX3RpbWVyKTsKIAkJZm9yIChqID0gMDsgaiA8PSByaW5nLT5mZW5jZV9k cnYubnVtX2ZlbmNlc19tYXNrOyArK2opCkBAIC01NzQsOCArNTc3LDkgQEAgdm9pZCBhbWRncHVf ZmVuY2VfZHJpdmVyX3N1c3BlbmQoc3RydWN0IGFtZGdwdV9kZXZpY2UgKmFkZXYpCiAJCX0KIAog CQkvKiBkaXNhYmxlIHRoZSBpbnRlcnJ1cHQgKi8KLQkJYW1kZ3B1X2lycV9wdXQoYWRldiwgcmlu Zy0+ZmVuY2VfZHJ2LmlycV9zcmMsCi0JCQkgICAgICAgcmluZy0+ZmVuY2VfZHJ2LmlycV90eXBl KTsKKwkJaWYgKHJpbmctPmZlbmNlX2Rydi5pcnFfc3JjKQorCQkJYW1kZ3B1X2lycV9wdXQoYWRl diwgcmluZy0+ZmVuY2VfZHJ2LmlycV9zcmMsCisJCQkJICAgICAgIHJpbmctPmZlbmNlX2Rydi5p cnFfdHlwZSk7CiAJfQogfQogCkBAIC02MDEsOCArNjA1LDkgQEAgdm9pZCBhbWRncHVfZmVuY2Vf ZHJpdmVyX3Jlc3VtZShzdHJ1Y3QgYW1kZ3B1X2RldmljZSAqYWRldikKIAkJCWNvbnRpbnVlOwog CiAJCS8qIGVuYWJsZSB0aGUgaW50ZXJydXB0ICovCi0JCWFtZGdwdV9pcnFfZ2V0KGFkZXYsIHJp bmctPmZlbmNlX2Rydi5pcnFfc3JjLAotCQkJICAgICAgIHJpbmctPmZlbmNlX2Rydi5pcnFfdHlw ZSk7CisJCWlmIChyaW5nLT5mZW5jZV9kcnYuaXJxX3NyYykKKwkJCWFtZGdwdV9pcnFfZ2V0KGFk ZXYsIHJpbmctPmZlbmNlX2Rydi5pcnFfc3JjLAorCQkJCSAgICAgICByaW5nLT5mZW5jZV9kcnYu aXJxX3R5cGUpOwogCX0KIH0KIAotLSAKMi4yNS40CgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwphbWQtZ2Z4IG1haWxpbmcgbGlzdAphbWQtZ2Z4QGxpc3Rz LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2FtZC1nZngK