add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/hid/hid-steam.c
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@@ -134,6 +134,11 @@
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 	int ret;
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 	r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];
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+	if (!r) {
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+		hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted -  nothing to read\n");
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+		return -EINVAL;
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+	}
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+
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 	if (hid_report_len(r) < 64)
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 		return -EINVAL;
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@@ -165,6 +170,11 @@
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 	int ret;
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 	r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];
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+	if (!r) {
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+		hid_err(steam->hdev, "No HID_FEATURE_REPORT submitted -  nothing to read\n");
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+		return -EINVAL;
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+	}
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+
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 	if (hid_report_len(r) < 64)
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 		return -EINVAL;
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