From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maarten Lankhorst Subject: Re: [PATCH] drm/i915: protect against division by zero. Date: Thu, 23 Aug 2018 07:11:16 +0200 Message-ID: <046ae3f5-67c4-e22f-791c-9deae679c253@linux.intel.com> References: <20180823005116.4336-1-rodrigo.vivi@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 44EEE6E4A3 for ; Thu, 23 Aug 2018 05:11:19 +0000 (UTC) In-Reply-To: <20180823005116.4336-1-rodrigo.vivi@intel.com> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Rodrigo Vivi , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T3AgMjMtMDgtMTggb20gMDI6NTEgc2NocmVlZiBSb2RyaWdvIFZpdmk6Cj4gU3RhdGljIGFuYWx5 emVyIHRvb2xzIHRoaW5rcyBpdCBpcyBwb3NzaWJsZSB0byBoYXZlIGEgZGl2aXNpb24gYnkgemVy bwo+IGhlcmUuCj4KPiBJIGRvbid0IGJlbGlldmUgd2Ugd291bGQgcmVhbGx5IHJlYWNoIHRoaXMg cGF0aCB3aXRob3V0IGFueSBjcnRjIGVuYWJsZWQsCj4gYnV0IG1heSBiZSBnb29kIHRvIHByb3Rl Y3QgYWdhaW5zdCBzb21lIHVuZXhwZWN0ZWQgcGF0aCBvciBiZWhhdmlvci4KPgo+IEZpeGVzOiBj ZjFmNjk3YWNiMDQgKCJkcm0vaTkxNS9za2w6IGRpc3RyaWJ1dGUgRERCIGJhc2VkIG9uIHBhbmVs IHJlc29sdXRpb24iKQo+IENjOiBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51 az4KPiBDYzogTWFoZXNoIEt1bWFyIDxtYWhlc2gxLmt1bWFyQGludGVsLmNvbT4KPiBDYzogTWFh cnRlbiBMYW5raG9yc3QgPG1hYXJ0ZW4ubGFua2hvcnN0QGxpbnV4LmludGVsLmNvbT4KPiBTaWdu ZWQtb2ZmLWJ5OiBSb2RyaWdvIFZpdmkgPHJvZHJpZ28udml2aUBpbnRlbC5jb20+Cj4gLS0tCj4g IGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMgfCA2ICsrKysrKwo+ICAxIGZpbGUgY2hh bmdlZCwgNiBpbnNlcnRpb25zKCspCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfcG0uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMKPiBpbmRleCBk OTllNWZhYmU5M2MuLmZhYzZlMTU5YTY0MCAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9wbS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYwo+ IEBAIC0zODc4LDYgKzM4NzgsMTIgQEAgc2tsX2RkYl9nZXRfcGlwZV9hbGxvY2F0aW9uX2xpbWl0 cyhzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LAo+ICAJCQlwaXBlX3dpZHRoID0gaGRpc3BsYXk7Cj4g IAl9Cj4gIAo+ICsJaWYgKFdBUk5fT04odG90YWxfd2lkdGggPT0gMCkpIHsKPiArCQlhbGxvYy0+ c3RhcnQgPSAwOwo+ICsJCWFsbG9jLT5lbmQgPSAwOwo+ICsJCXJldHVybjsKPiArCX0KPiArCj4g IAlhbGxvYy0+c3RhcnQgPSBkZGJfc2l6ZSAqIHdpZHRoX2JlZm9yZV9waXBlIC8gdG90YWxfd2lk dGg7Cj4gIAlhbGxvYy0+ZW5kID0gZGRiX3NpemUgKiAod2lkdGhfYmVmb3JlX3BpcGUgKyBwaXBl X3dpZHRoKSAvIHRvdGFsX3dpZHRoOwo+ICB9CgpJdCdzIGFjdHVhbGx5IHF1aXRlIGltcG9zc2li bGUuLiBvbmx5IHdheSBJIGNhbiBpbWFnaW5lIGlmIGh3IGlzIGFscmVhZHkgYm9ya2VkLgoKSXQg bXVzdCBiZSB0aGUgY2FzZSB0aGF0IHdlIHdpbGwgc2V0IGNzdGF0ZS0+YWN0aXZlLCB3aGljaCBp bXBsaWVzIGNzdGF0ZS0+ZW5hYmxlLAp3aGljaCBpbXBsaWVzIGEgdmFsaWQgbW9kZSBpcyBzZXQg YXQgbGVhc3Qgb24gdGhlIGN1cnJlbnQgY3J0Yy4KCkkgZG9uJ3QgdGhpbmsgc3RhdGljIGFuYWx5 c2lzIHRvb2xzIGNvdWxkIGRlZHVjZSBpdCwgYnV0IGRlZmluaXRlbHkgYSBmYWxzZSBwb3NpdGl2 ZS4KCkFsc28gdG9vIGdlbmVyaWMgY29tbWl0IG1lc3NhZ2Ugb25lbGluZXI/Cgp+TWFhcnRlbgoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==