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gpu: nvgpu: check fb_flush() return value

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Currently, ioctl_flush_l2 function and fecs_trace_poll() do not check
error value returned by fb_flush(). This patch checks if fb_flush()
returns an error and passes this error value up the stack.

Jira NVGPU-3475

Change-Id: I42208e3532873cf4088b350d31d867a96bea47be
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2259647
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Vedashree Vidwans
2019-12-10 14:43:35 -08:00
committed by Alex Waterman
parent 0ede89f859
commit 877ee6d305
2 changed files with 10 additions and 2 deletions
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6
drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
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@@ -656,7 +656,11 @@ static int nvgpu_gpu_ioctl_l2_fb_ops(struct gk20a *g,
}
if (args->fb_flush) {
g->ops.mm.cache.fb_flush(g);
err = g->ops.mm.cache.fb_flush(g);
if (err != 0) {
nvgpu_err(g, "mm.cache.fb_flush() failed err=%d", err);
return err;
}
}
return err;