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

From: Guenter Roeck
Date: Tue Mar 14 2017 - 09:49:35 EST


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@xxxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

---
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@xxxxxxxxxxxx>
*
@@ -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@xxxxxxxxxxxx>, "
- "Dimitry Andric <dimitry.andric@xxxxxxxxxx>");
+MODULE_AUTHOR("Ben Dooks <ben@xxxxxxxxxxxx>, Dimitry Andric <dimitry.andric@xxxxxxxxxx>");
MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver");
MODULE_LICENSE("GPL");