gpu: nvgpu: fix dereference after null check

Coverity id : 20234

Bug 1703084

Change-Id: I7b82a44dde39bf6b811ae144815c0c45468aa740
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/921326
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Tested-by: Sachin Nikam <snikam@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
index ca44cf21..1efa0c86 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
@@ -5471,7 +5471,7 @@ int gk20a_gr_isr(struct gk20a *g)
                                         gk20a_dbg_gpu_post_events(fault_ch);
                         }
 
-                        if (need_reset)
+                        if (need_reset && ch)
                                 gk20a_set_error_notifier(ch,
                                         NVGPU_CHANNEL_GR_ERROR_SW_NOTIFY);
                 }