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: Andy Shevchenko andriy.shevchenko@linux.intel.com --- drivers/spi/spi.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 57b5e4488416..19846fe4c4d5 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -64,7 +64,7 @@ modalias_show(struct device *dev, struct device_attribute *a, char *buf) if (len != -ENODEV) return len;
- return sprintf(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias); + return sysfs_emit(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias); } static DEVICE_ATTR_RO(modalias);
@@ -89,7 +89,7 @@ static ssize_t driver_override_show(struct device *dev, ssize_t len;
device_lock(dev); - len = snprintf(buf, PAGE_SIZE, "%s\n", spi->driver_override ? : ""); + len = sysfs_emit(buf, "%s\n", spi->driver_override ? : ""); device_unlock(dev); return len; } @@ -2797,8 +2797,7 @@ static ssize_t slave_show(struct device *dev, struct device_attribute *attr, struct device *child;
child = device_find_any_child(&ctlr->dev); - return sprintf(buf, "%s\n", - child ? to_spi_device(child)->modalias : NULL); + return sysfs_emit(buf, "%s\n", child ? to_spi_device(child)->modalias : NULL); }
static ssize_t slave_store(struct device *dev, struct device_attribute *attr,