s3c-fb: use display information in info not in var for panning



We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>

parent 01cba946

drivers/video/s3c-fb.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -883,7 +883,7 @@ static int s3c_fb_pan_display(struct fb_var_screeninfo *var,
		}
		}
		/* Offset in bytes to the end of the displayed area */
		end_boff = start_boff + var->yres * info->fix.line_length;
		end_boff = start_boff + info->var.yres * info->fix.line_length;

		/* Temporarily turn off per-vsync update from shadow registers until
		* both start and end addresses are updated to prevent corruption */