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habanalabs: skip events info ioctl if not supported

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Some ASICs haven't yet implemented this functionality and so the
ioctl call should fail and the user should be notified of the reason.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Ohad Sharabi 2022-11-06 09:26:01 +02:00 committed by Oded Gabbay
parent 3daa64eea1
commit b829e01025
1 changed files with 4 additions and 0 deletions
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4
drivers/misc/habanalabs/common/habanalabs_ioctl.c
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@ -123,6 +123,10 @@ static int hw_events_info(struct hl_device *hdev, bool aggregate,
return -EINVAL;
arr = hdev->asic_funcs->get_events_stat(hdev, aggregate, &size);
if (!arr) {
dev_err(hdev->dev, "Events info not supported\n");
return -EOPNOTSUPP;
}
return copy_to_user(out, arr, min(max_size, size)) ? -EFAULT : 0;
}