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comedi: convert sysfs snprintf to sysfs_emit 

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.

Signed-off-by: Xuezhi Zhang <zhangxuezhi1@coolpad.com>
Link: https://lore.kernel.org/r/20220901013423.418464-1-zhangxuezhi3@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xuezhi Zhang 2022-09-01 09:34:23 +08:00 committed by Greg Kroah-Hartman
parent 8e30538eca
commit ceecbbddbf
1 changed files with 4 additions and 4 deletions
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8
drivers/comedi/comedi_fops.c
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@ -396,7 +396,7 @@ static ssize_t max_read_buffer_kb_show(struct device *csdev,
mutex_unlock(&dev->mutex);
comedi_dev_put(dev);
return snprintf(buf, PAGE_SIZE, "%u\n", size);
return sysfs_emit(buf, "%u\n", size);
}
static ssize_t max_read_buffer_kb_store(struct device *csdev,
@ -452,7 +452,7 @@ static ssize_t read_buffer_kb_show(struct device *csdev,
mutex_unlock(&dev->mutex);
comedi_dev_put(dev);
return snprintf(buf, PAGE_SIZE, "%u\n", size);
return sysfs_emit(buf, "%u\n", size);
}
static ssize_t read_buffer_kb_store(struct device *csdev,
@ -509,7 +509,7 @@ static ssize_t max_write_buffer_kb_show(struct device *csdev,
mutex_unlock(&dev->mutex);
comedi_dev_put(dev);
return snprintf(buf, PAGE_SIZE, "%u\n", size);
return sysfs_emit(buf, "%u\n", size);
}
static ssize_t max_write_buffer_kb_store(struct device *csdev,
@ -565,7 +565,7 @@ static ssize_t write_buffer_kb_show(struct device *csdev,
mutex_unlock(&dev->mutex);
comedi_dev_put(dev);
return snprintf(buf, PAGE_SIZE, "%u\n", size);
return sysfs_emit(buf, "%u\n", size);
}
static ssize_t write_buffer_kb_store(struct device *csdev,