[PATCH linux-next] coresight: use sysfs_emit() to instead of scnprintf()

[zhangsongyi.cgel at gmail.com]

From: zhang songyi <zhang.songyi at zte.com.cn>

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the value
to be returned to user space.

Reported-by: Zeal Robot <zealci at zte.com.cn>
Signed-off-by: zhang songyi <zhang.songyi at zte.com.cn>
---
 drivers/hwtracing/coresight/coresight-stm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-stm.c b/drivers/hwtracing/coresight/coresight-stm.c
index 463f449cfb79..3a1b07217932 100644
--- a/drivers/hwtracing/coresight/coresight-stm.c
+++ b/drivers/hwtracing/coresight/coresight-stm.c
@@ -466,7 +466,7 @@ static ssize_t hwevent_enable_show(struct device *dev,
 	struct stm_drvdata *drvdata = dev_get_drvdata(dev->parent);
 	unsigned long val = drvdata->stmheer;
 
-	return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+	return sysfs_emit(buf, "%#lx\n", val);
 }
 
 static ssize_t hwevent_enable_store(struct device *dev,
@@ -495,7 +495,7 @@ static ssize_t hwevent_select_show(struct device *dev,
 	struct stm_drvdata *drvdata = dev_get_drvdata(dev->parent);
 	unsigned long val = drvdata->stmhebsr;
 
-	return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+	return sysfs_emit(buf, "%#lx\n", val);
 }
 
 static ssize_t hwevent_select_store(struct device *dev,
@@ -530,7 +530,7 @@ static ssize_t port_select_show(struct device *dev,
 		spin_unlock(&drvdata->spinlock);
 	}
 
-	return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+	return sysfs_emit(buf, "%#lx\n", val);
 }
 
 static ssize_t port_select_store(struct device *dev,
@@ -577,7 +577,7 @@ static ssize_t port_enable_show(struct device *dev,
 		spin_unlock(&drvdata->spinlock);
 	}
 
-	return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+	return sysfs_emit(buf, "%#lx\n", val);
 }
 
 static ssize_t port_enable_store(struct device *dev,
-- 
2.25.1