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From 97cad72339bd667ba9255e5f04bab631b8b365c5 Mon Sep 17 00:00:00 2001
From: Harry Wentland <harry.wentland@amd.com>
Date: Tue, 13 Feb 2018 11:07:43 -0500
Subject: [PATCH 3657/4131] drm/amd/display: Don't blow up if TG is NULL in
dce110_vblank_set
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Harry Wentland <harry.wentland@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 9bc1c1d..afe0876 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;
}
--
2.7.4
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