1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
index 4fea0779..5fe10273 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a_sysfs.c
@@ -615,6 +615,9 @@ static ssize_t tpc_fs_mask_store(struct device *device,
         if (kstrtoul(buf, 10, &val) < 0)
                 return -EINVAL;
 
+        if (!g->gr.gpc_tpc_mask)
+                return -ENODEV;
+
         if (val && val != g->gr.gpc_tpc_mask[0] && g->ops.gr.set_gpc_tpc_mask) {
                 g->gr.gpc_tpc_mask[0] = val;