1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
index 84d63b91..9c64675f 100644
--- a/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
+++ b/drivers/gpu/nvgpu/gv11b/fifo_gv11b.c
@@ -596,6 +596,9 @@ void gv11b_fifo_reset_pbdma_and_eng_faulted(struct gk20a *g,
         nvgpu_log(g, gpu_dbg_intr, "reset faulted pbdma:0x%x eng:0x%x",
                                 faulted_pbdma, faulted_engine);
 
+        if (!refch)
+                return;
+
         if (gk20a_is_channel_marked_as_tsg(refch)) {
                 tsg = &g->fifo.tsg[refch->tsgid];
                 if (faulted_pbdma != FIFO_INVAL_PBDMA_ID)