97b31c1f8e
The CPU trigger is invoked on ARM from CPU-idle. That trigger later invokes led_trigger_event() which may invoke the callback of the actual driver. That driver can acquire a spinlock_t which is okay on kernel without PREEMPT_RT. On a PREEMPT_RT enabled kernel this lock is turned into a sleeping lock and must not be acquired with disabled interrupts. Disable the CPU trigger on PREEMPT_RT. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Link: https://lkml.kernel.org/r/20210924111501.m57cwwn7ahiyxxdd@linutronix.de Signed-off-by: Pavel Machek <pavel@ucw.cz> |
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| ledtrig-activity.c | ||
| ledtrig-audio.c | ||
| ledtrig-backlight.c | ||
| ledtrig-camera.c | ||
| ledtrig-cpu.c | ||
| ledtrig-default-on.c | ||
| ledtrig-disk.c | ||
| ledtrig-gpio.c | ||
| ledtrig-heartbeat.c | ||
| ledtrig-mtd.c | ||
| ledtrig-netdev.c | ||
| ledtrig-oneshot.c | ||
| ledtrig-panic.c | ||
| ledtrig-pattern.c | ||
| ledtrig-timer.c | ||
| ledtrig-transient.c | ||
| ledtrig-tty.c | ||