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b=U9kWFnfC3oQMbgDNWHcOQJ/NJT HfgLlU43wb+0bVziHK6qseWoW1WMNY9f8Yajz9bGzugJq2zGqk+5Zl/V7gMxjMMyR2ibJg2DM/cKq mFzfarqU1oKC/MKLL6HJdfJrlr9ls7aCcDDFy74PBnwrJJomtlNsDXUz13oWND07rvw4PsnCH04QP aYc/Td6PEoaEgs9zzYMyNlzWqaiAeywaleFvaOvv0NUvxO68TRI9g5PexamYMQFGhtIA9nmouBK2A hlhLO7I37xAuZou/gPdDekGMLTi100S6UetXWliTUUnG1AXLWeo3vVV6iXXbak+pKHorNBooaP+i1 QmeOqqOg==; From: Heiko Stuebner To: Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Philipp Zabel , Emil Renner Berthing , Hal Feng , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Dominique Belhachemi , Andy Yan , David Airlie , Simona Vetter , Yakir Yang , Dmitry Baryshkov , Michal Wilczynski , Conor Dooley , William Qiu , Xingyu Wu , Sandy Huang , Manivannan Sadhasivam , Michal Wilczynski Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-riscv@lists.infradead.org, Marek Szyprowski , Maud Spierings , Graham Markall , Icenowy Zheng , Chaoyi Chen , Joshua Peisach , Uwe =?UTF-8?B?S2xlaW5lLUvDtm5pZw==?= Subject: Re: [PATCH v6 02/18] drm/bridge: inno-hdmi: Don't dereference a NULL drm_device on hotplug Date: Fri, 30 Oct 2026 18:43:47 +0100 Message-ID: <1844578.vCJZsxu672@phil> In-Reply-To: <20261029-jh7110-clean-send-v6-2-759594e43acf@samsung.com> References: <20261029-jh7110-clean-send-v6-0-759594e43acf@samsung.com> <20261029-jh7110-clean-send-v6-2-759594e43acf@samsung.com> X-Archived-By: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261030_104418_464062_EB3C8964 X-CRM114-Status: GOOD ( 20.47 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-rockchip" X-Spam-Status: No, score=-13.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 QW0gRG9ubmVyc3RhZywgMjkuIE9rdG9iZXIgMjAyNiwgMDg6NTM6MzYgTWl0dGVsZXVyb3DDpGlz Y2hlIE5vcm1hbHplaXQgc2NocmllYiBNaWNoYWwgV2lsY3p5bnNraToKPiBpbm5vX2hkbWlfaXJx KCkgcGFzc2VzIGhkbWktPmJyaWRnZS5kZXYgdG8gZHJtX2hlbHBlcl9ocGRfaXJxX2V2ZW50KCks Cj4gd2hpY2ggZGVyZWZlcmVuY2VzIGl0IGluIGl0cyBmaXJzdCBzdGF0ZW1lbnQ6Cj4gCj4gCWlm ICghZGV2LT5tb2RlX2NvbmZpZy5wb2xsX2VuYWJsZWQpCj4gCj4gYnJpZGdlLmRldiBpcyBhc3Np Z25lZCBvbmx5IGJ5IGRybV9icmlkZ2VfYXR0YWNoKCksIGJ1dCBpbm5vX2hkbWlfYmluZCgpCj4g dW5tdXRlcyB0aGUgaG90cGx1ZyBpbnRlcnJ1cHQgaW4gaW5ub19oZG1pX2luaXRfaHcoKSBhbmQg aW5zdGFsbHMgdGhlCj4gaGFuZGxlciB3ZWxsIGJlZm9yZSBpdCBhdHRhY2hlcyB0aGUgYnJpZGdl Ogo+IAo+IAlpbm5vX2hkbWlfaW5pdF9odyhoZG1pKTsJCS8qIHVubXV0ZXMgaG90cGx1ZyAqLwo+ IAlkZXZtX3JlcXVlc3RfdGhyZWFkZWRfaXJxKC4uLik7CQkvKiBoYW5kbGVyIGdvZXMgbGl2ZSAq Lwo+IAkuLi4KPiAJaGRtaS0+YnJpZGdlLmRkYyA9IGlubm9faGRtaV9pMmNfYWRhcHRlcihoZG1p KTsKPiAJZGV2bV9kcm1fYnJpZGdlX2FkZChkZXYsICZoZG1pLT5icmlkZ2UpOwo+IAlkcm1fYnJp ZGdlX2F0dGFjaCguLi4pOwkJCS8qIGJyaWRnZS5kZXYgc2V0IGhlcmUgKi8KPiAKPiBUaGUgYnJp ZGdlIGlzIGFsbG9jYXRlZCBieSBkZXZtX2RybV9icmlkZ2VfYWxsb2MoKSwgd2hpY2gga3phbGxv YygpcyBpdCwKPiBzbyBicmlkZ2UuZGV2IGlzIE5VTEwgZm9yIGFsbCBvZiB0aGF0IHdpbmRvdywg YW5kIGEgaG90cGx1ZyBldmVudAo+IGFycml2aW5nIGluIGl0IGVudGVycyBkcm1faGVscGVyX2hw ZF9pcnFfZXZlbnQoTlVMTCkuCj4gCj4gQmVmb3JlIHRoZSBjb252ZXJzaW9uIHRvIGEgYnJpZGdl IHRoZSBvcmRlcmluZyB3YXMgc2FmZToKPiBpbm5vX2hkbWlfcmVnaXN0ZXIoKSBjYWxsZWQgZHJt bV9jb25uZWN0b3JfaGRtaV9pbml0KCksIHdoaWNoIHNldAo+IGNvbm5lY3Rvci5kZXYsIGJlZm9y ZSB0aGUgaW50ZXJydXB0IHdhcyByZXF1ZXN0ZWQuCj4gCj4gRHJvcCBob3RwbHVnIGV2ZW50cyB0 aGF0IGFycml2ZSBiZWZvcmUgdGhlIGJyaWRnZSBpcyBhdHRhY2hlZC4KPiAKPiBGaXhlczogOTY5 MzI1YTI1OTdlICgiZHJtL3JvY2tjaGlwOiBpbm5vLWhkbWk6IENvbnZlcnQgdG8gZHJtIGJyaWRn ZSIpCj4gU2lnbmVkLW9mZi1ieTogTWljaGFsIFdpbGN6eW5za2kgPG0ud2lsY3p5bnNraUBzYW1z dW5nLmNvbT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2JyaWRnZS9pbm5vLWhkbWkuYyB8IDgg KysrKysrKy0KPiAgMSBmaWxlIGNoYW5nZWQsIDcgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigt KQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYnJpZGdlL2lubm8taGRtaS5jIGIv ZHJpdmVycy9ncHUvZHJtL2JyaWRnZS9pbm5vLWhkbWkuYwo+IGluZGV4IGQ3YzMzYjkyZTJkZGY0 Y2VkODRkMTczMDQ0NjNmNDRiZTUyMjcwYjguLmQyOTgzMjI0OWI5NDJkZWM4NGZiOWQwN2EwYjIx ZWU3NTFmYzA0ODYgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2JyaWRnZS9pbm5vLWhk bWkuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9icmlkZ2UvaW5uby1oZG1pLmMKPiBAQCAtOTI5 LDcgKzkyOSwxMyBAQCBzdGF0aWMgaXJxcmV0dXJuX3QgaW5ub19oZG1pX2lycShpbnQgaXJxLCB2 b2lkICpkZXZfaWQpCj4gIHsKPiAgCXN0cnVjdCBpbm5vX2hkbWkgKmhkbWkgPSBkZXZfaWQ7Cj4g IAo+IC0JZHJtX2hlbHBlcl9ocGRfaXJxX2V2ZW50KGhkbWktPmJyaWRnZS5kZXYpOwo+ICsJLyoK PiArCSAqIFRoZSBpbnRlcnJ1cHQgaXMgcmVxdWVzdGVkIGJlZm9yZSB0aGUgYnJpZGdlIGlzIGF0 dGFjaGVkLCBhbmQKPiArCSAqIGJyaWRnZS5kZXYgaXMgb25seSBzZXQgYnkgZHJtX2JyaWRnZV9h dHRhY2goKS4gRHJvcCBob3RwbHVnIGV2ZW50cwo+ICsJICogdGhhdCBhcnJpdmUgYmVmb3JlIHRo ZW4gcmF0aGVyIHRoYW4gZGVyZWZlcmVuY2UgYSBOVUxMIGRybV9kZXZpY2UuCj4gKwkgKi8KPiAr CWlmIChoZG1pLT5icmlkZ2UuZGV2KQo+ICsJCWRybV9oZWxwZXJfaHBkX2lycV9ldmVudChoZG1p LT5icmlkZ2UuZGV2KTsKClJldmlld2VkLWJ5OiBIZWlrbyBTdHVlYm5lciA8aGVpa29Ac250ZWNo LmRlPgoKTW9zdCBvdGhlciBjYWxsZXJzIG9mIGRybV9oZWxwZXJfaHBkX2lycV9ldmVudCgpIGFs c28gZG8gZXhhY3RseSB0aGlzLgoKCkhlaWtvCgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fCkxpbnV4LXJvY2tjaGlwIG1haWxpbmcgbGlzdApMaW51eC1y b2NrY2hpcEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8vbGludXgtcm9ja2NoaXAK