From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harry Wentland Subject: Re: [PATCH] drm/amd/display: Fix potential NULL pointer dereferences in amdgpu_dm_atomic_commit_tail Date: Mon, 27 Nov 2017 14:23:12 -0500 Message-ID: <3ff97f37-946a-a795-e57c-6d835e93be21@amd.com> References: <20171127145700.GA18395@embeddedor.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20171127145700.GA18395@embeddedor.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: "Gustavo A. R. Silva" , Alex Deucher , =?UTF-8?Q?Christian_K=c3=b6nig?= , David Airlie Cc: amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: amd-gfx.lists.freedesktop.org T24gMjAxNy0xMS0yNyAwOTo1NyBBTSwgR3VzdGF2byBBLiBSLiBTaWx2YSB3cm90ZToKPiBkbV9u ZXdfY3J0Y19zdGF0ZS0+c3RyZWFtIGFuZCBkaXNjb25uZWN0ZWRfYWNydGMgYXJlIGJlaW5nIGRl cmVmZXJlbmNlZAo+IGJlZm9yZSB0aGV5IGFyZSBudWxsIGNoZWNrZWQsIGhlbmNlIHRoZXJlIGlz IGEgcG90ZW50aWFsIG51bGwgcG9pbnRlcgo+IGRlcmVmZXJlbmNlLgo+IAo+IEZpeCB0aGlzIGJ5 IG51bGwgY2hlY2tpbmcgc3VjaCBwb2ludGVycyBiZWZvcmUgdGhleSBhcmUgZGVyZWZlcmVuY2Vk Lgo+IAo+IEFkZHJlc3Nlcy1Db3Zlcml0eS1JRDogMTQyMzc0NSAoIkRlcmVmZXJlbmNlIGJlZm9y ZSBudWxsIGNoZWNrIikKPiBBZGRyZXNzZXMtQ292ZXJpdHktSUQ6IDE0MjM4MzMgKCJEZXJlZmVy ZW5jZSBiZWZvcmUgbnVsbCBjaGVjayIpCj4gRml4ZXM6IGU3YjA3Y2VlZjJhNiAoImRybS9hbWQv ZGlzcGxheTogTWVyZ2UgYW1kZ3B1X2RtX3R5cGVzIGFuZCBhbWRncHVfZG0iKQo+IEZpeGVzOiA1 NGQ3NjU3NTI0NjcgKCJkcm0vYW1kL2Rpc3BsYXk6IFVuaWZ5IGFtZGdwdV9kbSBzdGF0ZSB2YXJp YWJsZSBuYW1pbmdzLiIpCj4gU2lnbmVkLW9mZi1ieTogR3VzdGF2byBBLiBSLiBTaWx2YSA8Z2Fy c2lsdmFAZW1iZWRkZWRvci5jb20+Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9hbWQvZGlzcGxh eS9hbWRncHVfZG0vYW1kZ3B1X2RtLmMgfCAxMiArKysrKysrLS0tLS0KPiAgMSBmaWxlIGNoYW5n ZWQsIDcgaW5zZXJ0aW9ucygrKSwgNSBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJp dmVycy9ncHUvZHJtL2FtZC9kaXNwbGF5L2FtZGdwdV9kbS9hbWRncHVfZG0uYyBiL2RyaXZlcnMv Z3B1L2RybS9hbWQvZGlzcGxheS9hbWRncHVfZG0vYW1kZ3B1X2RtLmMKPiBpbmRleCA4ODllZDI0 Li4zYmRkMTM3IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvZGlzcGxheS9hbWRn cHVfZG0vYW1kZ3B1X2RtLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2Rpc3BsYXkvYW1k Z3B1X2RtL2FtZGdwdV9kbS5jCj4gQEAgLTQxOTAsNiArNDE5MCw5IEBAIHN0YXRpYyB2b2lkIGFt ZGdwdV9kbV9hdG9taWNfY29tbWl0X3RhaWwoc3RydWN0IGRybV9hdG9taWNfc3RhdGUgKnN0YXRl KQo+ICAKPiAgCQlkbV9uZXdfY3J0Y19zdGF0ZSA9IHRvX2RtX2NydGNfc3RhdGUobmV3X2NydGNf c3RhdGUpOwo+ICAKPiArCQlpZiAoIWRtX25ld19jcnRjX3N0YXRlLT5zdHJlYW0pCj4gKwkJCWNv bnRpbnVlOwo+ICsKPiAgCQl1cGRhdGVfc3RyZWFtX3NjYWxpbmdfc2V0dGluZ3MoJmRtX25ld19j b25fc3RhdGUtPmJhc2UuY3J0Yy0+bW9kZSwKPiAgCQkJCWRtX25ld19jb25fc3RhdGUsIChzdHJ1 Y3QgZGNfc3RyZWFtX3N0YXRlICopZG1fbmV3X2NydGNfc3RhdGUtPnN0cmVhbSk7Cj4gIAo+IEBA IC00MTk3LDkgKzQyMDAsNiBAQCBzdGF0aWMgdm9pZCBhbWRncHVfZG1fYXRvbWljX2NvbW1pdF90 YWlsKHN0cnVjdCBkcm1fYXRvbWljX3N0YXRlICpzdGF0ZSkKPiAgCQlXQVJOX09OKCFzdGF0dXMp Owo+ICAJCVdBUk5fT04oIXN0YXR1cy0+cGxhbmVfY291bnQpOwo+ICAKPiAtCQlpZiAoIWRtX25l d19jcnRjX3N0YXRlLT5zdHJlYW0pCj4gLQkJCWNvbnRpbnVlOwo+IC0KPiAgCQkvKlRPRE8gSG93 IGl0IHdvcmtzIHdpdGggTVBPID8qLwo+ICAJCWlmICghZGNfY29tbWl0X3BsYW5lc190b19zdHJl YW0oCj4gIAkJCQlkbS0+ZGMsCj4gQEAgLTQzMzIsOSArNDMzMiwxMSBAQCB2b2lkIGRtX3Jlc3Rv cmVfZHJtX2Nvbm5lY3Rvcl9zdGF0ZShzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LAo+ICAJCXJldHVy bjsKPiAgCj4gIAlkaXNjb25uZWN0ZWRfYWNydGMgPSB0b19hbWRncHVfY3J0Yyhjb25uZWN0b3It PmVuY29kZXItPmNydGMpOwo+IC0JYWNydGNfc3RhdGUgPSB0b19kbV9jcnRjX3N0YXRlKGRpc2Nv bm5lY3RlZF9hY3J0Yy0+YmFzZS5zdGF0ZSk7Cj4gKwlpZiAoIWRpc2Nvbm5lY3RlZF9hY3J0YykK PiArCQlyZXR1cm47Cj4gIAo+IC0JaWYgKCFkaXNjb25uZWN0ZWRfYWNydGMgfHwgIWFjcnRjX3N0 YXRlLT5zdHJlYW0pCj4gKwlhY3J0Y19zdGF0ZSA9IHRvX2RtX2NydGNfc3RhdGUoZGlzY29ubmVj dGVkX2FjcnRjLT5iYXNlLnN0YXRlKTsKPiArCWlmICghYWNydGNfc3RhdGUtPnN0cmVhbSkKPiAg CQlyZXR1cm47CgpUaGlzIHBhcnQgaXMgYWxyZWFkeSBpbiBodHRwczovL2xpc3RzLmZyZWVkZXNr dG9wLm9yZy9hcmNoaXZlcy9hbWQtZ2Z4LzIwMTctTm92ZW1iZXIvMDE2Mzg5Lmh0bWwgb24gaXRz IHdheSB0byBiZSBtZXJnZWQuCgpUaGUgcmVzdCBvZiB0aGUgcGF0Y2ggaXMKUmV2aWV3ZWQtYnk6 IEhhcnJ5IFdlbnRsYW5kIDxoYXJyeS53ZW50bGFuZEBhbWQuY29tPgoKSGFycnkKCj4gIAo+ICAJ LyoKPiAKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJp LWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBz Oi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==