[PATCH] drm/nouveau/dp: convert to use ERR_CAST()

[zhang.enpei]

From: Zhang Enpei <zhang.en...@zte.com.cn>
As opposed to open-code, use ERR_CAST to clearly indicate that this is a
pointer to an error value and a type conversion is performed.

Signed-off-by: Zhang Enpei <zhang.en...@zte.com.cn>
---
 drivers/gpu/drm/nouveau/nvkm/engine/disp/r535.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/r535.c 
b/drivers/gpu/drm/nouveau/nvkm/engine/disp/r535.c
index 99110ab2f44d..43ad467d09db 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/r535.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/r535.c
@@ -646,7 +646,7 @@ r535_conn_new(struct nvkm_disp *disp, u32 id)
        ctrl = nvkm_gsp_rm_ctrl_get(&disp->rm.objcom,
                                    
NV0073_CTRL_CMD_SPECIFIC_GET_CONNECTOR_DATA, sizeof(*ctrl));
        if (IS_ERR(ctrl))
-               return (void *)ctrl;
+               return ERR_CAST(ctrl);

        ctrl->subDeviceInstance = 0;
        ctrl->displayId = BIT(id);
-- 
2.25.1