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parisc: Skip registering LED when running in QEMU

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No need to spend CPU cycles when we run on QEMU.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: stable@vger.kernel.org # v4.9+
This commit is contained in:
Helge Deller 2019-04-02 12:17:08 +02:00
parent f30bfa6d29
commit b438749044
1 changed files with 3 additions and 0 deletions
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3
drivers/parisc/led.c
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@ -568,6 +568,9 @@ int __init register_led_driver(int model, unsigned long cmd_reg, unsigned long d
break; break;
case DISPLAY_MODEL_LASI: case DISPLAY_MODEL_LASI:
/* Skip to register LED in QEMU */
if (running_on_qemu)
return 1;
LED_DATA_REG = data_reg; LED_DATA_REG = data_reg;
led_func_ptr = led_LASI_driver; led_func_ptr = led_LASI_driver;
printk(KERN_INFO "LED display at %lx registered\n", LED_DATA_REG); printk(KERN_INFO "LED display at %lx registered\n", LED_DATA_REG);