video: rockchip: display-sys: fix compilation warning

diff --git a/drivers/video/rockchip/display-sys.c b/drivers/video/rockchip/display-sys.c
index 738b5689f81cb5d86e2df3a53d3989c9fbe0507f..932cec6853e43c1bc662173891ff2a791abfb745 100644 (file)
--- a/drivers/video/rockchip/display-sys.c
+++ b/drivers/video/rockchip/display-sys.c
@@ -353,20 +353,14 @@ struct rk_display_device *rk_display_device_register(struct rk_display_driver *d
        if (unlikely(!driver))
                return ERR_PTR(ret);
 
-       mutex_lock(&allocated_dsp_lock);
-       ret = idr_pre_get(&allocated_dsp, GFP_KERNEL);
-       mutex_unlock(&allocated_dsp_lock);
-       if (!ret)
-               return ERR_PTR(ret);
-
        new_dev = kzalloc(sizeof(struct rk_display_device), GFP_KERNEL);
        if (likely(new_dev) && unlikely(driver->probe(new_dev, devdata))) {
                // Reserve the index for this display
                mutex_lock(&allocated_dsp_lock);
-               ret = idr_get_new(&allocated_dsp, new_dev, &new_dev->idx);
+               new_dev->idx = idr_alloc(&allocated_dsp, new_dev, 0, 0, GFP_KERNEL);
                mutex_unlock(&allocated_dsp_lock);
 
-               if (!ret) {
+               if (new_dev->idx >= 0) {
                        new_dev->dev = device_create(display_class, parent,
                                                     MKDEV(0, 0), new_dev,
                                                     "%s", new_dev->type);