From f22d7d45fab4a1a5cba7b932b55d74e925ffd6be Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Fri, 11 Mar 2016 13:09:28 +1000
Subject: [PATCH] drm/nouveau/fifo/gf100: don't attempt recovery of unknown mmu
engines
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c
index b9090bf597f3e..c56311acc9fe9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.c
@@ -334,7 +334,7 @@ gf100_fifo_intr_fault(struct gf100_fifo *fifo, int unit)
snprintf(gpcid, sizeof(gpcid), "GPC%d/", gpc);
}
- if (eu) {
+ if (eu && eu->data2) {
switch (eu->data2) {
case NVKM_SUBDEV_BAR:
nvkm_mask(device, 0x001704, 0x00000000, 0x00000000);
--
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