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([2600:8803:e7e4:1d00:442c:b496:9db4:da43]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-72e73d8ee4esm2029688a34.39.2025.04.14.07.59.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 14 Apr 2025 07:59:06 -0700 (PDT) Message-ID: <0b1b428d-9ad0-4581-a13a-88f4ffd6c4e3@baylibre.com> Date: Mon, 14 Apr 2025 09:59:05 -0500 Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] iio: adc: Correct conditional logic for store mode To: Gabriel Shahrouzi , Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Greg Kroah-Hartman , linux-iio@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Cc: gshahrozui@gmail.com, skhan@linuxfoundation.org, kernelmentees@lists.linuxfoundation.org References: <20250414140901.460719-1-gshahrouzi@gmail.com> Content-Language: en-US From: David Lechner In-Reply-To: <20250414140901.460719-1-gshahrouzi@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 4/14/25 9:09 AM, Gabriel Shahrouzi wrote: > The mode setting logic in ad7816_store_mode was reversed due to > incorrect handling of the strcmp return value. strcmp returns 0 on > match, so the `if (strcmp(buf, "full"))` block executed when the > input was not "full". > > This resulted in "full" setting the mode to AD7816_PD (power-down) and > other inputs setting it to AD7816_FULL. > > Fix this by checking it against 0 to correctly check for "full" and > "power-down", mapping them to AD7816_FULL and AD7816_PD respectively. > Sounds like we need a Fixes: tag here that reference the commit that introduced the bug. > Signed-off-by: Gabriel Shahrouzi > ---