spi: Use sysfs_emit() to instead of s*printf()

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>
Link: https://lore.kernel.org/r/20230710154932.68377-7-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 125dea8fae0030b7875bd86c30515bb3c6bd8e62..eec2371ea52ec8ff6fec48cc787d4d6fcff5d739 100644 (file)
--- 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;
 }
@@ -2814,8 +2814,7 @@ 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,