fix bug in rk_fb_ioctl

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 23f5178aa1f8be37e51b3c6bc26f1a04afae5f8e..781c3ed166c118accd941f29b6c8b787afb4203f 100644 (file)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -265,22 +265,22 @@ static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,unsigned long arg)
                        }
                        break;
                case FBIOSET_ENABLE:
-                       if (copy_from_user(&enable, argp, 1))
+                       if (copy_from_user(&enable, argp, sizeof(enable)))
                                return -EFAULT;
                        dev_drv->open(dev_drv,layer_id,enable);
                        break;
                case FBIOGET_ENABLE:
                        enable = dev_drv->get_layer_state(dev_drv,layer_id);
-                       if(copy_to_user(argp,&enable,1))
+                       if(copy_to_user(argp,&enable,sizeof(enable)))
                                return -EFAULT;
                        break;
                case FBIOSET_OVERLAY_STATE:
-                       if (copy_from_user(&ovl, argp, 1))
+                       if (copy_from_user(&ovl, argp, sizeof(ovl)))
                                return -EFAULT;
                        dev_drv->ovl_mgr(dev_drv,ovl,1);
                case FBIOGET_OVERLAY_STATE:
                        ovl = dev_drv->ovl_mgr(dev_drv,0,0);
-                       if (copy_to_user(argp, &ovl, 1))
+                       if (copy_to_user(argp, &ovl, sizeof(ovl)))
                                return -EFAULT;
                case FBIOGET_SCREEN_STATE:
                case FBIOPUT_SET_CURSOR_EN: