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In gr_gp10b_set_cilp_preempt_pending() we already extract TSG pointer by calling tsg_gk20a_from_ch() which safely returns correct TSG or NULL in error case But before calling g->ops.fifo.post_event_id() we again extract TSG by directly accessing g->fifo.tsg array, and this could result in getting invalid TSG pointer Fix this by removing direct TSG extraction through g->fifo.tsg Bug 2444819 Jira NVGPU-1601 Change-Id: I9d49b5309c74e162828e7cb7d97556aae939a07c Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1984954 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com> Reviewed-by: Nitin Kumbhar <nkumbhar@nvidia.com> Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Alex Waterman <alexw@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>