video: rk_fb: widen out var config limit

[firefly-linux-kernel-4.4.55.git] / drivers / video / rockchip / rk_fb.c

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 5836049d7e0d2adddf234314862dfee81a395e04..7c0462c18cfa9ac6141257855ebbbd6270aa72b4 100644 (file)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -1938,9 +1938,9 @@ static int rk_fb_check_config_var(struct rk_fb_area_par *area_par,
                return -EINVAL;
        }
 
-       if ((area_par->xpos + area_par->xsize > screen->mode.xres) ||
-           (area_par->ypos + area_par->ysize > screen->mode.yres) ||
-           (area_par->xsize <= 0) || (area_par->ysize <= 0)) {
+       if ((area_par->xpos >= screen->mode.xres) ||
+           (area_par->ypos >= screen->mode.yres) ||
+           ((area_par->xsize <= 0) || (area_par->ysize <= 0))) {
                pr_warn("check config var fail 1:\n"
                       "xpos=%d,xsize=%d,xres=%d\n"
                       "ypos=%d,ysize=%d,yres=%d\n",