From: hjc <hjc@rock-chips.com>
Date: Wed, 3 Jun 2015 03:38:39 +0000 (+0800)
Subject: rk fb: if win close we have to set 4 area state to 0, otherwise will lead to pagefault
X-Git-Tag: firefly_0821_release~4082
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=36cb2472e4c1fffafe61f759908f772c555ef636;p=firefly-linux-kernel-4.4.55.git

rk fb: if win close we have to set 4 area state to 0, otherwise will lead to pagefault

Signed-off-by: hjc <hjc@rock-chips.com>
---

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 307c95349cd3..a9ee1f0c3853 100755
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -1841,6 +1841,8 @@ static void rk_fb_update_reg(struct rk_lcdc_driver *dev_drv,
 		} else {
 			win->z_order = -1;
 			win->state = 0;
+			for (j = 0; j < 4; j++)
+				win->area[j].state = 0;
 #if defined(CONFIG_ROCKCHIP_IOMMU)
 			if (dev_drv->iommu_enabled) {
 				for (j = 0; j < 4; j++) {