s3fb: add sparse annotations

Add sparse annotations and use fb_read/fb_write and family to access the
framebuffer.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index c348813e6132..f3470bb7d549 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -164,7 +164,7 @@ MODULE_PARM_DESC(fasttext, "Enable S3 fast text mode (1=enable, 0=disable, defau
 static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map)
 {
         const u8 *font = map->data;
-        u8* fb = (u8 *) info->screen_base;
+        u8 __iomem *fb = (u8 __iomem *) info->screen_base;
         int i, c;
 
         if ((map->width != 8) || (map->height != 16) ||
@@ -177,7 +177,7 @@ static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map)
         fb += 2;
         for (i = 0; i < map->height; i++) {
                 for (c = 0; c < map->length; c++) {
-                        fb[c * 4] = font[c * map->height + i];
+                        fb_writeb(font[c * map->height + i], fb + c * 4);
                 }
                 fb += 1024;
         }
@@ -656,7 +656,7 @@ static int s3fb_set_par(struct fb_info *info)
         value = ((value * hmul) / 8) - 5;
         vga_wcrt(NULL, 0x3C, (value + 1) / 2);
 
-        memset((u8*)info->screen_base, 0x00, screen_size);
+        memset_io(info->screen_base, 0x00, screen_size);
         /* Device and screen back on */
         svga_wcrt_mask(0x17, 0x80, 0x80);
         svga_wseq_mask(0x01, 0x00, 0x20);