video: fbdev: omapfb: Use sysfs_emit() instead of snprintf()

Use sysfs_emit() instead of snprintf().

Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c
index b495c09..083388a 100644 (file)
--- a/drivers/video/fbdev/omap/omapfb_main.c
+++ b/drivers/video/fbdev/omap/omapfb_main.c
@@ -16,6 +16,7 @@
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/module.h>
+#include <linux/sysfs.h>
 
 #include <linux/omap-dma.h>
 
@@ -1303,7 +1304,7 @@ static ssize_t omapfb_show_panel_name(struct device *dev,
 {
        struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
-       return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->panel->name);
+       return sysfs_emit(buf, "%s\n", fbdev->panel->name);
 }
 
 static ssize_t omapfb_show_bklight_level(struct device *dev,
@@ -1314,8 +1315,8 @@ static ssize_t omapfb_show_bklight_level(struct device *dev,
        int r;
 
        if (fbdev->panel->get_bklight_level) {
-               r = snprintf(buf, PAGE_SIZE, "%d\n",
-                            fbdev->panel->get_bklight_level(fbdev->panel));
+               r = sysfs_emit(buf, "%d\n",
+                              fbdev->panel->get_bklight_level(fbdev->panel));
        } else
                r = -ENODEV;
        return r;
@@ -1348,8 +1349,8 @@ static ssize_t omapfb_show_bklight_max(struct device *dev,
        int r;
 
        if (fbdev->panel->get_bklight_level) {
-               r = snprintf(buf, PAGE_SIZE, "%d\n",
-                            fbdev->panel->get_bklight_max(fbdev->panel));
+               r = sysfs_emit(buf, "%d\n",
+                              fbdev->panel->get_bklight_max(fbdev->panel));
        } else
                r = -ENODEV;
        return r;
@@ -1379,7 +1380,7 @@ static ssize_t omapfb_show_ctrl_name(struct device *dev,
 {
        struct omapfb_device *fbdev = dev_get_drvdata(dev);
 
-       return snprintf(buf, PAGE_SIZE, "%s\n", fbdev->ctrl->name);
+       return sysfs_emit(buf, "%s\n", fbdev->ctrl->name);
 }
 
 static struct device_attribute dev_attr_ctrl_name =