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Thu, 22 Oct 2026 09:45:01 -0700 (PDT) Received: from kapoor.iiserb.ac.in ([203.18.51.239]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1903a180adasm15841782c88.8.2026.10.22.09.44.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Oct 2026 09:45:00 -0700 (PDT) From: Arnav Kapoor To: Andy Shevchenko Cc: Frank Li , Jonathan Cameron , David Lechner , Nuno Sa , Andy Shevchenko , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , linux-iio@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] iio: adc: fsl-imx25-gcq: check the return value of the Date: Thu, 22 Oct 2026 22:14:50 +0530 Message-ID: <20261022164452.201416-1-kapoorarnav43@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: <20261021225450.628499-1-kapoorarnav43@gmail.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261022_094502_445808_C2CB9116 X-CRM114-Status: UNSURE ( 9.25 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 (Resending as plain text, my earlier reply was rejected by one of the lists.) On Thu, Oct 22, 2026 at 07:35:59PM +0300, Andy Shevchenko wrote: > I consider this change an unneeded churn until you come up with real life > example of how MMIO fails You and Frank are right. The regmap here is a plain devm_regmap_init_mmio() without a clock, so the accesses can't return an error, and the uninitialized-data case can't happen either. Please drop this patch. Thanks to both of you for the review. And Andy, thank you for going through all of my patches today, the feedback has been very helpful. Arnav