From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753895Ab1LWHxT (ORCPT ); Fri, 23 Dec 2011 02:53:19 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:37274 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751913Ab1LWHxR (ORCPT ); Fri, 23 Dec 2011 02:53:17 -0500 X-AuditID: cbfee61a-b7b89ae000001a15-49-4ef43366b2f2 From: Jingoo Han To: "'Andrew Morton'" , "'LKML'" Cc: "'Richard Purdie'" , "'Jingoo Han'" Subject: [PATCH] backlight: use kstrtoul Date: Fri, 23 Dec 2011 16:53:10 +0900 Message-id: <000201ccc147$ea6750e0$bf35f2a0$%han@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit X-Mailer: Microsoft Office Outlook 12.0 Content-language: ko Thread-index: AczBR+oXPwnGCLhoS6iseIPO38PalQ== X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The usage of simple_strtoul or strict_strtoul is not preferred. Thus, kstrtoul should be used. This patch also fixes checkpatch error as follows: ERROR: space required after that ',' (ctx:VxV) Signed-off-by: Jingoo Han --- drivers/video/backlight/backlight.c | 6 +++--- drivers/video/backlight/lcd.c | 26 ++++++++++---------------- 2 files changed, 13 insertions(+), 19 deletions(-) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index 7363c1b..bf5b1ec 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -102,7 +102,7 @@ static void backlight_generate_event(struct backlight_device *bd, } static ssize_t backlight_show_power(struct device *dev, - struct device_attribute *attr,char *buf) + struct device_attribute *attr, char *buf) { struct backlight_device *bd = to_backlight_device(dev); @@ -116,7 +116,7 @@ static ssize_t backlight_store_power(struct device *dev, struct backlight_device *bd = to_backlight_device(dev); unsigned long power; - rc = strict_strtoul(buf, 0, &power); + rc = kstrtoul(buf, 0, &power); if (rc) return rc; @@ -150,7 +150,7 @@ static ssize_t backlight_store_brightness(struct device *dev, struct backlight_device *bd = to_backlight_device(dev); unsigned long brightness; - rc = strict_strtoul(buf, 0, &brightness); + rc = kstrtoul(buf, 0, &brightness); if (rc) return rc; diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c index 71a11ca..79c1b0d 100644 --- a/drivers/video/backlight/lcd.c +++ b/drivers/video/backlight/lcd.c @@ -97,19 +97,16 @@ static ssize_t lcd_store_power(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int rc = -ENXIO; - char *endp; struct lcd_device *ld = to_lcd_device(dev); - int power = simple_strtoul(buf, &endp, 0); - size_t size = endp - buf; + unsigned long power; - if (isspace(*endp)) - size++; - if (size != count) - return -EINVAL; + rc = kstrtoul(buf, 0, &power); + if (rc) + return rc; mutex_lock(&ld->ops_lock); if (ld->ops && ld->ops->set_power) { - pr_debug("lcd: set power to %d\n", power); + pr_debug("lcd: set power to %lu\n", power); ld->ops->set_power(ld, power); rc = count; } @@ -136,19 +133,16 @@ static ssize_t lcd_store_contrast(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int rc = -ENXIO; - char *endp; struct lcd_device *ld = to_lcd_device(dev); - int contrast = simple_strtoul(buf, &endp, 0); - size_t size = endp - buf; + unsigned long contrast; - if (isspace(*endp)) - size++; - if (size != count) - return -EINVAL; + rc = kstrtoul(buf, 0, &contrast); + if (rc) + return rc; mutex_lock(&ld->ops_lock); if (ld->ops && ld->ops->set_contrast) { - pr_debug("lcd: set contrast to %d\n", contrast); + pr_debug("lcd: set contrast to %lu\n", contrast); ld->ops->set_contrast(ld, contrast); rc = count; } -- 1.7.1