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

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Signed-off-by: hjc <hjc@rock-chips.com>
This commit is contained in:
hjc 2015-06-03 11:38:39 +08:00
parent 1061576f98
commit 36cb2472e4
1 changed files with 2 additions and 0 deletions
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2
drivers/video/rockchip/rk_fb.c
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@ -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++) {