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can: at91/janz-ican3: replace snprintf() in show functions with sysfs_emit() 

The sysfs show() functions must not use snprintf() when formatting the
value to be returned to user space.

Fix the following coccicheck warning:
| drivers/net/can/at91_can.c:1185: WARNING: use scnprintf or sprintf.
| drivers/net/can/janz-ican3.c:1834: WARNING: use scnprintf or sprintf.
|
| Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Link: https://lore.kernel.org/all/1634280624-4816-1-git-send-email-wangqing@vivo.com
Signed-off-by: Qing Wang <wangqing@vivo.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This commit is contained in:
Qing Wang 2021-10-14 23:50:24 -07:00 committed by Marc Kleine-Budde
parent fa759a9395
commit 7bc9ab0f42
2 changed files with 3 additions and 3 deletions
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4
drivers/net/can/at91_can.c
View File

@ -1170,9 +1170,9 @@ static ssize_t mb0_id_show(struct device *dev,
struct at91_priv *priv = netdev_priv(to_net_dev(dev));
if (priv->mb0_id & CAN_EFF_FLAG)
return snprintf(buf, PAGE_SIZE, "0x%08x\n", priv->mb0_id);
return sysfs_emit(buf, "0x%08x\n", priv->mb0_id);
else
return snprintf(buf, PAGE_SIZE, "0x%03x\n", priv->mb0_id);
return sysfs_emit(buf, "0x%03x\n", priv->mb0_id);
}
static ssize_t mb0_id_store(struct device *dev,

2
drivers/net/can/janz-ican3.c
View File

@ -1831,7 +1831,7 @@ static ssize_t termination_show(struct device *dev,
return -ETIMEDOUT;
}
return snprintf(buf, PAGE_SIZE, "%u\n", mod->termination_enabled);
return sysfs_emit(buf, "%u\n", mod->termination_enabled);
}
static ssize_t termination_store(struct device *dev,