[PATCH 31/33] drm/amd/display: Don't blow up if TG is NULL in dce110_vblank_set

[Harry Wentland]

Signed-off-by: Harry Wentland <harry.wentland at amd.com>
Reviewed-by: Roman Li <Roman.Li at amd.com>
Acked-by: Harry Wentland <harry.wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c b/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c
index 9bc1c1d90bad..afe0876fe6f8 100644
--- a/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c
+++ b/drivers/gpu/drm/amd/display/dc/irq/dce110/irq_service_dce110.c
@@ -208,7 +208,7 @@ bool dce110_vblank_set(struct irq_service *irq_service,
 			core_dc->current_state->res_ctx.pipe_ctx[pipe_offset].stream_res.tg;
 
 	if (enable) {
-		if (!tg->funcs->arm_vert_intr(tg, 2)) {
+		if (!tg || !tg->funcs->arm_vert_intr(tg, 2)) {
 			DC_ERROR("Failed to get VBLANK!\n");
 			return false;
 		}
-- 
2.14.1