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Message-Id: <20230119220809.5518-2-andriy.shevchenko@linux.intel.com>
Date: Fri, 20 Jan 2023 00:08:02 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Jens Axboe <axboe@...nel.dk>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 2/9] pktcdvd: replace sscanf() by kstrtoul()
The checkpatch.pl warns: "Prefer kstrto<type> to single variable sscanf".
Fix the code accordingly.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
drivers/block/pktcdvd.c | 34 ++++++++++++++++++----------------
1 file changed, 18 insertions(+), 16 deletions(-)
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 0ec8dc8ee5ed..ad4336ae9927 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -236,15 +236,16 @@ static ssize_t congestion_off_store(struct device *dev,
const char *buf, size_t len)
{
struct pktcdvd_device *pd = dev_get_drvdata(dev);
- int val;
+ int val, ret;
- if (sscanf(buf, "%d", &val) == 1) {
- spin_lock(&pd->lock);
- pd->write_congestion_off = val;
- init_write_congestion_marks(&pd->write_congestion_off,
- &pd->write_congestion_on);
- spin_unlock(&pd->lock);
- }
+ ret = kstrtoint(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&pd->lock);
+ pd->write_congestion_off = val;
+ init_write_congestion_marks(&pd->write_congestion_off, &pd->write_congestion_on);
+ spin_unlock(&pd->lock);
return len;
}
static DEVICE_ATTR_RW(congestion_off);
@@ -266,15 +267,16 @@ static ssize_t congestion_on_store(struct device *dev,
const char *buf, size_t len)
{
struct pktcdvd_device *pd = dev_get_drvdata(dev);
- int val;
+ int val, ret;
- if (sscanf(buf, "%d", &val) == 1) {
- spin_lock(&pd->lock);
- pd->write_congestion_on = val;
- init_write_congestion_marks(&pd->write_congestion_off,
- &pd->write_congestion_on);
- spin_unlock(&pd->lock);
- }
+ ret = kstrtoint(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&pd->lock);
+ pd->write_congestion_on = val;
+ init_write_congestion_marks(&pd->write_congestion_off, &pd->write_congestion_on);
+ spin_unlock(&pd->lock);
return len;
}
static DEVICE_ATTR_RW(congestion_on);
--
2.39.0
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