fbdev: correct image offsets when rotating logo

Correct the image offsets when rotating the logo.  Before image->dx and
image->dy were always zero, so nobody ever noticed.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-By: James Simmons <jsimmons@infradead.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 4 deletions

diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 8ce98a2f6f37..45f38390605b 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -354,22 +354,26 @@ static void fb_rotate_logo(struct fb_info *info, u8 *dst,
         if (rotate == FB_ROTATE_UD) {
                 fb_rotate_logo_ud(image->data, dst, image->width,
                                   image->height);
-                image->dx = info->var.xres - image->width;
-                image->dy = info->var.yres - image->height;
+                image->dx = info->var.xres - image->width - image->dx;
+                image->dy = info->var.yres - image->height - image->dy;
         } else if (rotate == FB_ROTATE_CW) {
                 fb_rotate_logo_cw(image->data, dst, image->width,
                                   image->height);
                 tmp = image->width;
                 image->width = image->height;
                 image->height = tmp;
-                image->dx = info->var.xres - image->width;
+                tmp = image->dy;
+                image->dy = image->dx;
+                image->dx = info->var.xres - image->width - tmp;
         } else if (rotate == FB_ROTATE_CCW) {
                 fb_rotate_logo_ccw(image->data, dst, image->width,
                                    image->height);
                 tmp = image->width;
                 image->width = image->height;
                 image->height = tmp;
-                image->dy = info->var.yres - image->height;
+                tmp = image->dx;
+                image->dx = image->dy;
+                image->dy = info->var.yres - image->height - tmp;
         }
 
         image->data = dst;