From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DFD6944AB62; Tue, 21 Jul 2026 21:55:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784670944; cv=none; b=bXCOW19p/zZOvwt0mpMzvZSQw/LraO/Za89d49yrQpFwHS9XeYG7rej5X85RlCWnV+9wXISSTFhIJ1uI8wNWm3G3hoLLiCTI4FTeZF+BCCbJudHboID6mFxrKLKAxIjbW+eNUCmEwKdCCiJnT0eTglxIhoW3ERNNuUtgjgZrCCw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784670944; c=relaxed/simple; bh=MdRZ4d14budPmMBzRw/XKNs5p/XYGrExemGquMO4dV0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ecz78OivlWHBQkVzPgXPRWDWpfdxkisZaz/fbXvqRYcLOMPsVjO1T4gDE1UQya1man/PLLT3OSJqt+zcCRzwyAmfmBSHlYIWPhCyLuCpoauw2WyknAS9V6GfhOs1Nbbz8cqUi8LjJg1/C7PlH6jab07BSRR8D/46W98X4rHNMuQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BSETHPjx; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="BSETHPjx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3706F1F000E9; Tue, 21 Jul 2026 21:55:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784670942; bh=JuanLAbfYhzv2WYIz12v8T48mfXpt5xrXaMm7jHitCM=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BSETHPjxwmprgnMAbYVX8RauiCpA5X+eMV98R+0QjHTmetELhHoGyo+VENN7lFhp9 0wenHB+yEqj9u9JljPqzb/6ERJ13gUxDf1UKOeZWxc2smN4uALBUyeL5kZiiYsarfF IedxpLG82OSV3wvL6LWI6a1blQiTxK6tw8klM5IY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Vidhu Sarwal , Andy Shevchenko , Stable@vger.kernel.org, Jonathan Cameron Subject: [PATCH 5.15 059/843] iio: light: al3010: fix incorrect scale for the highest gain range Date: Tue, 21 Jul 2026 17:14:54 +0200 Message-ID: <20260721152407.314123279@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vidhu Sarwal commit aa411adc6ce40ad1a55ebc965f255a4cfc0005f8 upstream. al3010_scales[] encodes the highest gain range as {0, 1187200}. For IIO_VAL_INT_PLUS_MICRO, the fractional part must be less than 1000000, so the scale 1.1872 should instead be represented as { 1, 187200 }. Since write_raw() compares the value from userspace against this table, writing the advertised 1.1872 scale never matches the malformed entry and returns -EINVAL. As a result, the highest gain range cannot be selected. Reading the scale in that state also reports the malformed value. Fixes: c36b5195ab70 ("iio: light: add Dyna-Image AL3010 driver") Signed-off-by: Vidhu Sarwal Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/light/al3010.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/light/al3010.c +++ b/drivers/iio/light/al3010.c @@ -43,7 +43,7 @@ enum al3xxxx_range { }; static const int al3010_scales[][2] = { - {0, 1187200}, {0, 296800}, {0, 74200}, {0, 18600} + { 1, 187200 }, { 0, 296800 }, { 0, 74200 }, { 0, 18600 }, }; struct al3010_data {