video: rockchip: rb: return error value to user when an exception is configed

Change-Id: I81697f24c6914f07f8facad4e23ad4fb6824190c
Signed-off-by: Huang Jiachai <hjc@rock-chips.com>

diff --git a/drivers/video/rockchip/rk_fb.c b/drivers/video/rockchip/rk_fb.c
index 8c0bc7addb3bd4a616c6b3ca22abae48e6deab64..d6ff9d67d342b5557d81fd3bbf378f1ab92c84d3 100755 (executable)
--- a/drivers/video/rockchip/rk_fb.c
+++ b/drivers/video/rockchip/rk_fb.c
@@ -2609,7 +2609,7 @@ static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,
        int enable;     /* enable fb:1 enable;0 disable */
        int ovl;        /* overlay:0 win1 on the top of win0;1,win0 on the top of win1 */
        int num_buf;    /* buffer_number */
-       int ret;
+       int ret = 0;
        struct rk_fb_win_cfg_data win_data;
        unsigned int dsp_addr[4][4];
        int list_stat;
@@ -2844,7 +2844,7 @@ static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,
                };
 
                dev_drv->wait_fs = win_data.wait_fs;
-               rk_fb_set_win_config(info, &win_data);
+               ret = rk_fb_set_win_config(info, &win_data);
 
                if (copy_to_user((struct rk_fb_win_cfg_data __user *)arg,
                                 &win_data, sizeof(win_data))) {
@@ -2862,7 +2862,7 @@ static int rk_fb_ioctl(struct fb_info *info, unsigned int cmd,
                break;
        }
 
-       return 0;
+       return ret;
 }
 
 static int rk_fb_blank(int blank_mode, struct fb_info *info)