From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sasha Levin Subject: [PATCH AUTOSEL 5.2 30/59] drm/amd/powerplay: fix null pointer dereference around dpm state relates Date: Tue, 6 Aug 2019 17:32:50 -0400 Message-ID: <20190806213319.19203-30-sashal@kernel.org> References: <20190806213319.19203-1-sashal@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190806213319.19203-1-sashal-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Alex Deucher , Sasha Levin , Evan Quan , dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org List-Id: dri-devel@lists.freedesktop.org RnJvbTogRXZhbiBRdWFuIDxldmFuLnF1YW5AYW1kLmNvbT4KClsgVXBzdHJlYW0gY29tbWl0IDQ3 OTE1NmYyZTU1NDAwNzczNzdhODIzZWFmNWE0MjYzYmQzMjkwNjMgXQoKRFBNIHN0YXRlIHJlbGF0 ZXMgYXJlIG5vdCBzdXBwb3J0ZWQgb24gdGhlIG5ldyBTVyBTTVUgQVNJQ3MuIEJ1dCBzdGlsbApp dCdzIG5vdCBPSyB0byB0cmlnZ2VyIG51bGwgcG9pbnRlciBkZXJlZmVyZW5jZSBvbiBhY2Nlc3Np bmcgdGhlbS4KClNpZ25lZC1vZmYtYnk6IEV2YW4gUXVhbiA8ZXZhbi5xdWFuQGFtZC5jb20+ClJl dmlld2VkLWJ5OiBBbGV4IERldWNoZXIgPGFsZXhhbmRlci5kZXVjaGVyQGFtZC5jb20+ClNpZ25l ZC1vZmYtYnk6IEFsZXggRGV1Y2hlciA8YWxleGFuZGVyLmRldWNoZXJAYW1kLmNvbT4KU2lnbmVk LW9mZi1ieTogU2FzaGEgTGV2aW4gPHNhc2hhbEBrZXJuZWwub3JnPgotLS0KIGRyaXZlcnMvZ3B1 L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9wbS5jICAgICB8IDE4ICsrKysrKysrKysrKystLS0tLQog ZHJpdmVycy9ncHUvZHJtL2FtZC9wb3dlcnBsYXkvYW1kZ3B1X3NtdS5jIHwgIDMgKystCiAyIGZp bGVzIGNoYW5nZWQsIDE1IGluc2VydGlvbnMoKyksIDYgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0 IGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X3BtLmMgYi9kcml2ZXJzL2dwdS9k cm0vYW1kL2FtZGdwdS9hbWRncHVfcG0uYwppbmRleCBhYmVhYWI0YmYxYmMyLi5kNTU1MTliYzM0 ZTUyIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfcG0uYwor KysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfcG0uYwpAQCAtMTQ0LDEyICsx NDQsMTYgQEAgc3RhdGljIHNzaXplX3QgYW1kZ3B1X2dldF9kcG1fc3RhdGUoc3RydWN0IGRldmlj ZSAqZGV2LAogCXN0cnVjdCBhbWRncHVfZGV2aWNlICphZGV2ID0gZGRldi0+ZGV2X3ByaXZhdGU7 CiAJZW51bSBhbWRfcG1fc3RhdGVfdHlwZSBwbTsKIAotCWlmIChpc19zdXBwb3J0X3N3X3NtdShh ZGV2KSAmJiBhZGV2LT5zbXUucHB0X2Z1bmNzLT5nZXRfY3VycmVudF9wb3dlcl9zdGF0ZSkKLQkJ cG0gPSBhbWRncHVfc211X2dldF9jdXJyZW50X3Bvd2VyX3N0YXRlKGFkZXYpOwotCWVsc2UgaWYg KGFkZXYtPnBvd2VycGxheS5wcF9mdW5jcy0+Z2V0X2N1cnJlbnRfcG93ZXJfc3RhdGUpCisJaWYg KGlzX3N1cHBvcnRfc3dfc211KGFkZXYpKSB7CisJCWlmIChhZGV2LT5zbXUucHB0X2Z1bmNzLT5n ZXRfY3VycmVudF9wb3dlcl9zdGF0ZSkKKwkJCXBtID0gYW1kZ3B1X3NtdV9nZXRfY3VycmVudF9w b3dlcl9zdGF0ZShhZGV2KTsKKwkJZWxzZQorCQkJcG0gPSBhZGV2LT5wbS5kcG0udXNlcl9zdGF0 ZTsKKwl9IGVsc2UgaWYgKGFkZXYtPnBvd2VycGxheS5wcF9mdW5jcy0+Z2V0X2N1cnJlbnRfcG93 ZXJfc3RhdGUpIHsKIAkJcG0gPSBhbWRncHVfZHBtX2dldF9jdXJyZW50X3Bvd2VyX3N0YXRlKGFk ZXYpOwotCWVsc2UKKwl9IGVsc2UgewogCQlwbSA9IGFkZXYtPnBtLmRwbS51c2VyX3N0YXRlOwor CX0KIAogCXJldHVybiBzbnByaW50ZihidWYsIFBBR0VfU0laRSwgIiVzXG4iLAogCQkJKHBtID09 IFBPV0VSX1NUQVRFX1RZUEVfQkFUVEVSWSkgPyAiYmF0dGVyeSIgOgpAQCAtMTc2LDcgKzE4MCwx MSBAQCBzdGF0aWMgc3NpemVfdCBhbWRncHVfc2V0X2RwbV9zdGF0ZShzdHJ1Y3QgZGV2aWNlICpk ZXYsCiAJCWdvdG8gZmFpbDsKIAl9CiAKLQlpZiAoYWRldi0+cG93ZXJwbGF5LnBwX2Z1bmNzLT5k aXNwYXRjaF90YXNrcykgeworCWlmIChpc19zdXBwb3J0X3N3X3NtdShhZGV2KSkgeworCQltdXRl eF9sb2NrKCZhZGV2LT5wbS5tdXRleCk7CisJCWFkZXYtPnBtLmRwbS51c2VyX3N0YXRlID0gc3Rh dGU7CisJCW11dGV4X3VubG9jaygmYWRldi0+cG0ubXV0ZXgpOworCX0gZWxzZSBpZiAoYWRldi0+ cG93ZXJwbGF5LnBwX2Z1bmNzLT5kaXNwYXRjaF90YXNrcykgewogCQlhbWRncHVfZHBtX2Rpc3Bh dGNoX3Rhc2soYWRldiwgQU1EX1BQX1RBU0tfRU5BQkxFX1VTRVJfU1RBVEUsICZzdGF0ZSk7CiAJ fSBlbHNlIHsKIAkJbXV0ZXhfbG9jaygmYWRldi0+cG0ubXV0ZXgpOwpkaWZmIC0tZ2l0IGEvZHJp dmVycy9ncHUvZHJtL2FtZC9wb3dlcnBsYXkvYW1kZ3B1X3NtdS5jIGIvZHJpdmVycy9ncHUvZHJt L2FtZC9wb3dlcnBsYXkvYW1kZ3B1X3NtdS5jCmluZGV4IGVlYzMyOWFiNjAzNzAuLjYxYTZkMTgz YzE1M2YgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvcG93ZXJwbGF5L2FtZGdwdV9z bXUuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL3Bvd2VycGxheS9hbWRncHVfc211LmMKQEAg LTYzLDcgKzYzLDggQEAgaW50IHNtdV9nZXRfcG93ZXJfbnVtX3N0YXRlcyhzdHJ1Y3Qgc211X2Nv bnRleHQgKnNtdSwKIAogCS8qIG5vdCBzdXBwb3J0IHBvd2VyIHN0YXRlICovCiAJbWVtc2V0KHN0 YXRlX2luZm8sIDAsIHNpemVvZihzdHJ1Y3QgcHBfc3RhdGVzX2luZm8pKTsKLQlzdGF0ZV9pbmZv LT5udW1zID0gMDsKKwlzdGF0ZV9pbmZvLT5udW1zID0gMTsKKwlzdGF0ZV9pbmZvLT5zdGF0ZXNb MF0gPSBQT1dFUl9TVEFURV9UWVBFX0RFRkFVTFQ7CiAKIAlyZXR1cm4gMDsKIH0KLS0gCjIuMjAu MQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KYW1kLWdm eCBtYWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0 cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4