linux-kernel - Re: [PATCH v3 3/3] watchdog: s3c2410: Minor code cleanup

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Message-ID: <a2b69ffd-8573-ae9c-c338-c0c7589d1e45@roeck-us.net>
Date:   Tue, 14 Mar 2017 06:49:10 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Krzysztof Kozlowski <krzk@...nel.org>,
        Kukjin Kim <kgene@...nel.org>,
        Javier Martinez Canillas <javier@....samsung.com>,
        Wim Van Sebroeck <wim@...ana.be>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/3] watchdog: s3c2410: Minor code cleanup

On 03/13/2017 12:07 PM, Krzysztof Kozlowski wrote:
> Cleanup the code from minor readability issues (no functional changes):
> 1. Fix checkpatch: ERROR: Do not include the paragraph about writing to
>    the Free Software Foundation's mailing address.
> 2. Fix checkpatch: WARNING: quoted string split across lines
> 3. Fix chechpatch: WARNING: Prefer 'unsigned int' to bare use of
>    'unsigned'
> 4. Use 'dev' consistently in probe function instead of mixing dev with
>    &pdev->dev.
>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  drivers/watchdog/s3c2410_wdt.c | 35 +++++++++++++----------------------
>  1 file changed, 13 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
> index 0532dc93e600..adaa43543f0a 100644
> --- a/drivers/watchdog/s3c2410_wdt.c
> +++ b/drivers/watchdog/s3c2410_wdt.c
> @@ -1,5 +1,4 @@
> -/* linux/drivers/char/watchdog/s3c2410_wdt.c
> - *
> +/*
>   * Copyright (c) 2004 Simtec Electronics
>   *	Ben Dooks <ben@...tec.co.uk>
>   *
> @@ -17,11 +16,7 @@
>   * but WITHOUT ANY WARRANTY; without even the implied warranty of
>   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>   * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
> -*/
> + */
>
>  #include <linux/module.h>
>  #include <linux/moduleparam.h>
> @@ -95,8 +90,7 @@ MODULE_PARM_DESC(tmr_atboot,
>  			__MODULE_STRING(S3C2410_WATCHDOG_ATBOOT));
>  MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
>  			__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
> -MODULE_PARM_DESC(soft_noboot, "Watchdog action, set to 1 to ignore reboots, "
> -			"0 to reboot (default 0)");
> +MODULE_PARM_DESC(soft_noboot, "Watchdog action, set to 1 to ignore reboots, 0 to reboot (default 0)");
>
>  /**
>   * struct s3c2410_wdt_variant - Per-variant config data
> @@ -311,7 +305,8 @@ static inline int s3c2410wdt_is_running(struct s3c2410_wdt *wdt)
>  	return readl(wdt->reg_base + S3C2410_WTCON) & S3C2410_WTCON_ENABLE;
>  }
>
> -static int s3c2410wdt_set_heartbeat(struct watchdog_device *wdd, unsigned timeout)
> +static int s3c2410wdt_set_heartbeat(struct watchdog_device *wdd,
> +				    unsigned int timeout)
>  {
>  	struct s3c2410_wdt *wdt = watchdog_get_drvdata(wdd);
>  	unsigned long freq = clk_get_rate(wdt->clock);
> @@ -525,7 +520,7 @@ s3c2410_get_wdt_drv_data(struct platform_device *pdev)
>
>  static int s3c2410wdt_probe(struct platform_device *pdev)
>  {
> -	struct device *dev;
> +	struct device *dev = &pdev->dev;
>  	struct s3c2410_wdt *wdt;
>  	struct resource *wdt_mem;
>  	struct resource *wdt_irq;
> @@ -533,13 +528,11 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
>  	int started = 0;
>  	int ret;
>
> -	dev = &pdev->dev;
> -
>  	wdt = devm_kzalloc(dev, sizeof(*wdt), GFP_KERNEL);
>  	if (!wdt)
>  		return -ENOMEM;
>
> -	wdt->dev = &pdev->dev;
> +	wdt->dev = dev;
>  	spin_lock_init(&wdt->lock);
>  	wdt->wdt_device = s3c2410_wdd;
>
> @@ -595,7 +588,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
>  	/* see if we can actually set the requested timer margin, and if
>  	 * not, try the default value */
>
> -	watchdog_init_timeout(&wdt->wdt_device, tmr_margin, &pdev->dev);
> +	watchdog_init_timeout(&wdt->wdt_device, tmr_margin, dev);
>  	ret = s3c2410wdt_set_heartbeat(&wdt->wdt_device,
>  					wdt->wdt_device.timeout);
>  	if (ret) {
> @@ -604,11 +597,10 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
>
>  		if (started == 0)
>  			dev_info(dev,
> -			   "tmr_margin value out of range, default %d used\n",
> -			       S3C2410_WATCHDOG_DEFAULT_TIME);
> +				 "tmr_margin value out of range, default %d used\n",
> +				 S3C2410_WATCHDOG_DEFAULT_TIME);
>  		else
> -			dev_info(dev, "default timer value is out of range, "
> -							"cannot start\n");
> +			dev_info(dev, "default timer value is out of range, cannot start\n");
>  	}
>
>  	ret = devm_request_irq(dev, wdt_irq->start, s3c2410wdt_irq, 0,
> @@ -622,7 +614,7 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
>  	watchdog_set_restart_priority(&wdt->wdt_device, 128);
>
>  	wdt->wdt_device.bootstatus = s3c2410wdt_get_bootstatus(wdt);
> -	wdt->wdt_device.parent = &pdev->dev;
> +	wdt->wdt_device.parent = dev;
>
>  	ret = watchdog_register_device(&wdt->wdt_device);
>  	if (ret) {
> @@ -757,7 +749,6 @@ static struct platform_driver s3c2410wdt_driver = {
>
>  module_platform_driver(s3c2410wdt_driver);
>
> -MODULE_AUTHOR("Ben Dooks <ben@...tec.co.uk>, "
> -	      "Dimitry Andric <dimitry.andric@...tom.com>");
> +MODULE_AUTHOR("Ben Dooks <ben@...tec.co.uk>, Dimitry Andric <dimitry.andric@...tom.com>");
>  MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver");
>  MODULE_LICENSE("GPL");
>