gpu: nvgpu: Remove IOCTL FREE_OBJ_CTX

We have never used the IOCTL FREE_OBJ_CTX. Using it leads to context
being only partially available, and can lead to use-after-free.

Bug 1834225

Change-Id: I9d2b632ab79760f8186d02e0f35861b3a6aae649
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1250004
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
index 37b9737b..56812fa6 100644
--- a/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/gr_gm20b.c
@@ -1534,7 +1534,6 @@ void gm20b_init_gr(struct gpu_ops *gops)
         gops->gr.get_gpc_tpc_mask = gr_gm20b_get_gpc_tpc_mask;
         gops->gr.free_channel_ctx = gk20a_free_channel_ctx;
         gops->gr.alloc_obj_ctx = gk20a_alloc_obj_ctx;
-        gops->gr.free_obj_ctx = gk20a_free_obj_ctx;
         gops->gr.bind_ctxsw_zcull = gr_gk20a_bind_ctxsw_zcull;
         gops->gr.get_zcull_info = gr_gk20a_get_zcull_info;
         gops->gr.is_tpc_addr = gr_gm20b_is_tpc_addr;