From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:46175 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754184AbcIVNmn (ORCPT ); Thu, 22 Sep 2016 09:42:43 -0400 Subject: Patch "iio: accel: kxsd9: Fix scaling bug" has been added to the 4.4-stable tree To: linus.walleij@linaro.org, gregkh@linuxfoundation.org, jic23@kernel.org Cc: , From: Date: Thu, 22 Sep 2016 15:41:45 +0200 Message-ID: <147455170522928@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled iio: accel: kxsd9: Fix scaling bug to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: iio-accel-kxsd9-fix-scaling-bug.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 307fe9dd11ae44d4f8881ee449a7cbac36e1f5de Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 1 Sep 2016 11:44:35 +0200 Subject: iio: accel: kxsd9: Fix scaling bug From: Linus Walleij commit 307fe9dd11ae44d4f8881ee449a7cbac36e1f5de upstream. All the scaling of the KXSD9 involves multiplication with a fraction number < 1. However the scaling value returned from IIO_INFO_SCALE was unpredictable as only the micros of the value was assigned, and not the integer part, resulting in scaling like this: $cat in_accel_scale -1057462640.011978 Fix this by assigning zero to the integer part. Tested-by: Jonathan Cameron Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/accel/kxsd9.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/iio/accel/kxsd9.c +++ b/drivers/iio/accel/kxsd9.c @@ -166,6 +166,7 @@ static int kxsd9_read_raw(struct iio_dev ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C)); if (ret < 0) goto error_ret; + *val = 0; *val2 = kxsd9_micro_scales[ret & KXSD9_FS_MASK]; ret = IIO_VAL_INT_PLUS_MICRO; break; Patches currently in stable-queue which might be from linus.walleij@linaro.org are queue-4.4/iio-accel-kxsd9-fix-scaling-bug.patch queue-4.4/pinctrl-sunxi-fix-uart1-cts-rts-pins-at-pg-on-a23-a33.patch queue-4.4/iio-accel-kxsd9-fix-raw-read-return.patch queue-4.4/pinctrl-pistachio-fix-mfio-pll_lock-pinmux.patch