diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
index a46971a541690ac6e30a9f45a13bca2a69ca5a3b..4529adc7835b44db090b6484254d7286393385d5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.c
@@ -399,7 +399,7 @@ gk104_fifo_intr_fault(struct gk104_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);