fbdev: uvesafb: use sysfs_emit() to instead of scnprintf()

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: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
index 2bb95c35ab2a3a9a79179d4d28581e3735950d12..f09f483c219b75e03f0f21bdd0fecc42226dfeea 100644 (file)
--- a/drivers/video/fbdev/uvesafb.c
+++ b/drivers/video/fbdev/uvesafb.c
@@ -1580,7 +1580,7 @@ static ssize_t uvesafb_show_vendor(struct device *dev,
        struct uvesafb_par *par = info->par;
 
        if (par->vbe_ib.oem_vendor_name_ptr)
-               return scnprintf(buf, PAGE_SIZE, "%s\n", (char *)
+               return sysfs_emit(buf, "%s\n", (char *)
                        (&par->vbe_ib) + par->vbe_ib.oem_vendor_name_ptr);
        else
                return 0;
@@ -1595,7 +1595,7 @@ static ssize_t uvesafb_show_product_name(struct device *dev,
        struct uvesafb_par *par = info->par;
 
        if (par->vbe_ib.oem_product_name_ptr)
-               return scnprintf(buf, PAGE_SIZE, "%s\n", (char *)
+               return sysfs_emit(buf, "%s\n", (char *)
                        (&par->vbe_ib) + par->vbe_ib.oem_product_name_ptr);
        else
                return 0;
@@ -1610,7 +1610,7 @@ static ssize_t uvesafb_show_product_rev(struct device *dev,
        struct uvesafb_par *par = info->par;
 
        if (par->vbe_ib.oem_product_rev_ptr)
-               return scnprintf(buf, PAGE_SIZE, "%s\n", (char *)
+               return sysfs_emit(buf, "%s\n", (char *)
                        (&par->vbe_ib) + par->vbe_ib.oem_product_rev_ptr);
        else
                return 0;
@@ -1625,7 +1625,7 @@ static ssize_t uvesafb_show_oem_string(struct device *dev,
        struct uvesafb_par *par = info->par;
 
        if (par->vbe_ib.oem_string_ptr)
-               return scnprintf(buf, PAGE_SIZE, "%s\n",
+               return sysfs_emit(buf, "%s\n",
                        (char *)(&par->vbe_ib) + par->vbe_ib.oem_string_ptr);
        else
                return 0;
@@ -1639,7 +1639,7 @@ static ssize_t uvesafb_show_nocrtc(struct device *dev,
        struct fb_info *info = dev_get_drvdata(dev);
        struct uvesafb_par *par = info->par;
 
-       return scnprintf(buf, PAGE_SIZE, "%d\n", par->nocrtc);
+       return sysfs_emit(buf, "%d\n", par->nocrtc);
 }
 
 static ssize_t uvesafb_store_nocrtc(struct device *dev,