From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794064085; b=dslrbmkQeN7CqFZK93N7aWAoU4PEmQWZUmjLavbV2ZUPnkdnyfEZeZWSpAzTy/8pvB7O byLsgU62eYudLN9yppHYH5Qzrk7caP5YCUGI+310fC1NZsOdpDZFra2zgbulLhOf9B/Jk /qHe4KahOab5QaPW64G/O2MvLhQg8q07LoNiktAcLrjPPKMeYWCtfD4607XdrafB4HkSF ZHe5VKk/IW7TZAe+omhAC6tRfQ/i57v9nFIJpcFhDbN8j9dEZhMm4BeiqSCNtvkFWSiXh aYbt0fSp6bIsf0gVcBqb/0wxVhTJ96Pz5IbNDvPvTzxNKbWFmvZhNX1/eHo5nrzLnUQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794064085; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=6nt57PrBVkwV19QuHeBlIwNNHeScg+LC/SMXY/5sasE=; b=hkRYgtehCE/B+Sg16HjoKZm9mvqEi5bFcaqDWk5+Jtj9M5SDWA58q+AVR8aOuCbOqrz/ f4xFhpPR3txDyetGpiQP3lj+0Y4WnSlUEIy+iqPmZ8Tmf7TM071deJ0dJfvCMmElX0BtI PiZSiEW4cWboZf3QxuqBEEX8WXESP2i+7vA8eceT6HK+82nZqAmW8Z5oj3JTWQScZSuG1 NqAJ6TwhKv0JgOrPPfuU04eMsujU03zCCSiJ3F9Yjj//9mb37EPl6HXUtS1fGdPPPPaDs wC0UDGsk7CuPxk5XtAp0H6HFHDiK/fxlszYEp3fV3N9wVarhj8Sd8YHlesHj7gv4pxg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=rnukiYDP; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A714606CE4F; Sat, 7 Nov 2026 15:08:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=rnukiYDP Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDCA71F0089F; Sat, 7 Nov 2026 15:08:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794064085; bh=6nt57PrBVkwV19QuHeBlIwNNHeScg+LC/SMXY/5sasE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=rnukiYDPVTZaMBlYmJHPEfoMtXCaxlqsV5Qg52WiTntpE0fU2Llj2k0QBfdYGPZg0 ULcUsrv8RL82PDJJQwAPM2MAZ6YlAbzH/LjYHkoOxIOh+/lOy02P/7sJn/vCXeMmwY wh7f7NFseknGc58MypBG0gHLxn7kE52El22qeJLg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, sashiko-bot@kernel.org, Ariana Lazar , Andy Shevchenko , Jonathan Cameron , Sasha Levin Subject: [PATCH 7.3 0212/1257] iio: dac: mcp47feb02: Return len when disabling EEPROM store Date: Sat, 7 Nov 2026 08:41:48 -0500 Message-ID: <20261107134945.398400637@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ariana Lazar [ Upstream commit 6d96f5a03ebdcc664f5d2fe0a170ca0ea513e3a5 ] When state is false, return the number of bytes (len) the buffer has instead of 0 to properly signal that the input buffer was fully consumed, preventing unnecessary write retries. Fixes: bf394cc80369 ("iio: dac: adding support for Microchip MCP47FEB02") Reported-by: sashiko-bot@kernel.org Closes: https://lore.kernel.org/all/20260804134616.1D8A21F00A3E@smtp.kernel.org/ Cc: stable@vger.kernel.org Signed-off-by: Ariana Lazar Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin --- drivers/iio/dac/mcp47feb02.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/mcp47feb02.c b/drivers/iio/dac/mcp47feb02.c index 1b1a4972f7719..fdc266ba1536f 100644 --- a/drivers/iio/dac/mcp47feb02.c +++ b/drivers/iio/dac/mcp47feb02.c @@ -467,7 +467,7 @@ static ssize_t store_eeprom_store(struct device *dev, struct device_attribute *a return ret; if (!state) - return 0; + return len; /* * Verify DAC Wiper and DAC Configuration are unlocked. If both are disabled, -- 2.53.0