From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C2E6C433FE for ; Fri, 3 Sep 2021 06:24:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2610F6101A for ; Fri, 3 Sep 2021 06:24:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245618AbhICGZX (ORCPT ); Fri, 3 Sep 2021 02:25:23 -0400 Received: from smtp3.hiworks.co.kr ([121.254.168.205]:18477 "EHLO smtp3.hiworks.co.kr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230128AbhICGZU (ORCPT ); Fri, 3 Sep 2021 02:25:20 -0400 Received: (qmail 120186 invoked from network); 3 Sep 2021 15:17:39 +0900 Received: from unknown (HELO hiworks.co.kr) (192.168.10.161) by 0 (qmail 1.03 + ejcp v14) with SMTP; 3 Sep 2021 15:17:39 +0900 Received: (qmail 18377 invoked from network); 3 Sep 2021 15:17:39 +0900 Received: from unknown (HELO DESKTOP3HTLQGF) (tykwon@m2i.co.kr@58.75.176.98) by 0 (qmail 1.03 + ejcp v14) with SMTP; 3 Sep 2021 15:17:39 +0900 X-Authinfo: HIWORKS SMTP authenticated From: =?UTF-8?B?6raM7YOc7JiB?= To: "'Ulf Hansson'" Cc: "'linux-mmc'" , "'Linux Kernel Mailing List'" References: <20210624061418.30361-1-tykwon@m2i.co.kr> In-Reply-To: Subject: RE: [PATCH] mmc: core: Added support for LED trigger only when SD card is connected Date: Fri, 3 Sep 2021 15:17:40 +0900 Message-ID: <111301d7a08b$66710460$33530d20$@m2i.co.kr> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQM/ouEl57R0GPXs7J4RkiPdEOUrjgFbgzw3qEjedVCAbhYg0A== Content-Language: ko Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > I'm guessing it's because of the NULL in the mmc_sd_remove() function in > drivers/mmc/core/sd.c , but I'm not sure. > I think it was clumsy because I was a newbie unfamiliar with mmc > drivers. :) I'll take a closer look. This was a hardware issue. The CD pins on my hardware kept vibrating. :)