add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/parisc/led.c
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@@ -56,8 +56,8 @@
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 static int led_type __read_mostly = -1;
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 static unsigned char lastleds;	/* LED state from most recent update */
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 static unsigned int led_heartbeat __read_mostly = 1;
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-static unsigned int led_diskio    __read_mostly = 1;
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-static unsigned int led_lanrxtx   __read_mostly = 1;
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+static unsigned int led_diskio    __read_mostly;
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+static unsigned int led_lanrxtx   __read_mostly;
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 static char lcd_text[32]          __read_mostly;
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 static char lcd_text_default[32]  __read_mostly;
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 static int  lcd_no_led_support    __read_mostly = 0; /* KittyHawk doesn't support LED on its LCD */
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@@ -137,6 +137,9 @@
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 	/* Create the work queue and queue the LED task */
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 	led_wq = create_singlethread_workqueue("led_wq");	
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+	if (!led_wq)
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+		return -ENOMEM;
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+
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 	queue_delayed_work(led_wq, &led_task, 0);
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 	return 0;