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gpu: nvgpu: check for valid ctx in gr error report code

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Add checking whether the current context is valid on reporting
sm exception error. This is needed as the interrupt unit test
call without a valid channel.

Jira NVGPU-4096

Change-Id: Ic6c49593dea26148f33f3bbf41a5dee437925c56
Signed-off-by: vinodg <vinodg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2209873
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
vinodg
2019-10-01 19:31:59 -07:00
committed by Alex Waterman
parent 4930e923fa
commit 5bd62ba4c8
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/nvgpu/common/gr/gr_intr.c
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@@ -209,6 +209,10 @@ static void gr_intr_report_sm_exception(struct gk20a *g, u32 gpc, u32 tpc,
tsgid = NVGPU_INVALID_TSG_ID;
curr_ctx = g->ops.gr.falcon.get_current_ctx(g);
if (curr_ctx == 0U) {
return;
}
ch = nvgpu_gr_intr_get_channel_from_ctx(g, curr_ctx, &tsgid);
chid = ch != NULL ? ch->chid : NVGPU_INVALID_CHANNEL_ID;
if (ch != NULL) {