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3031993b34
lpg_brighness_set() function can sleep, while led's brightness_set()
callback must be non-blocking. Change LPG driver to use
brightness_set_blocking() instead.
BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 0, name: swapper/0
preempt_count: 101, expected: 0
INFO: lockdep is turned off.
CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 6.1.0-rc1-00014-gbe99b089c6fc-dirty #85
Hardware name: Qualcomm Technologies, Inc. DB820c (DT)
Call trace:
dump_backtrace.part.0+0xe4/0xf0
show_stack+0x18/0x40
dump_stack_lvl+0x88/0xb4
dump_stack+0x18/0x34
__might_resched+0x170/0x254
__might_sleep+0x48/0x9c
__mutex_lock+0x4c/0x400
mutex_lock_nested+0x2c/0x40
lpg_brightness_single_set+0x40/0x90
led_set_brightness_nosleep+0x34/0x60
led_heartbeat_function+0x80/0x170
call_timer_fn+0xb8/0x340
__run_timers.part.0+0x20c/0x254
run_timer_softirq+0x3c/0x7c
_stext+0x14c/0x578
____do_softirq+0x10/0x20
call_on_irq_stack+0x2c/0x5c
do_softirq_own_stack+0x1c/0x30
__irq_exit_rcu+0x164/0x170
irq_exit_rcu+0x10/0x40
el1_interrupt+0x38/0x50
el1h_64_irq_handler+0x18/0x2c
el1h_64_irq+0x64/0x68
cpuidle_enter_state+0xc8/0x380
cpuidle_enter+0x38/0x50
do_idle+0x244/0x2d0
cpu_startup_entry+0x24/0x30
rest_init+0x128/0x1a0
arch_post_acpi_subsys_init+0x0/0x18
start_kernel+0x6f4/0x734
__primary_switched+0xbc/0xc4
Fixes:
|
||
|---|---|---|
| .. | ||
| blink | ||
| flash | ||
| rgb | ||
| simple | ||
| trigger | ||
| Kconfig | ||
| led-class-flash.c | ||
| led-class-multicolor.c | ||
| led-class.c | ||
| led-core.c | ||
| led-triggers.c | ||
| leds-88pm860x.c | ||
| leds-acer-a500.c | ||
| leds-adp5520.c | ||
| leds-an30259a.c | ||
| leds-apu.c | ||
| leds-ariel.c | ||
| leds-asic3.c | ||
| leds-aw2013.c | ||
| leds-bcm6328.c | ||
| leds-bcm6358.c | ||
| leds-bd2802.c | ||
| leds-blinkm.c | ||
| leds-clevo-mail.c | ||
| leds-cobalt-qube.c | ||
| leds-cobalt-raq.c | ||
| leds-cpcap.c | ||
| leds-cr0014114.c | ||
| leds-da903x.c | ||
| leds-da9052.c | ||
| leds-dac124s085.c | ||
| leds-el15203000.c | ||
| leds-gpio-register.c | ||
| leds-gpio.c | ||
| leds-hp6xx.c | ||
| leds-ip30.c | ||
| leds-ipaq-micro.c | ||
| leds-is31fl32xx.c | ||
| leds-is31fl319x.c | ||
| leds-lm355x.c | ||
| leds-lm3530.c | ||
| leds-lm3532.c | ||
| leds-lm3533.c | ||
| leds-lm3642.c | ||
| leds-lm3692x.c | ||
| leds-lm3697.c | ||
| leds-lm36274.c | ||
| leds-locomo.c | ||
| leds-lp50xx.c | ||
| leds-lp55xx-common.c | ||
| leds-lp55xx-common.h | ||
| leds-lp3944.c | ||
| leds-lp3952.c | ||
| leds-lp5521.c | ||
| leds-lp5523.c | ||
| leds-lp5562.c | ||
| leds-lp8501.c | ||
| leds-lp8788.c | ||
| leds-lp8860.c | ||
| leds-lt3593.c | ||
| leds-max8997.c | ||
| leds-max77650.c | ||
| leds-mc13783.c | ||
| leds-menf21bmc.c | ||
| leds-mlxcpld.c | ||
| leds-mlxreg.c | ||
| leds-mt6323.c | ||
| leds-net48xx.c | ||
| leds-netxbig.c | ||
| leds-nic78bx.c | ||
| leds-ns2.c | ||
| leds-ot200.c | ||
| leds-pca955x.c | ||
| leds-pca963x.c | ||
| leds-pca9532.c | ||
| leds-pm8058.c | ||
| leds-powernv.c | ||
| leds-pwm.c | ||
| leds-rb532.c | ||
| leds-regulator.c | ||
| leds-s3c24xx.c | ||
| leds-sc27xx-bltc.c | ||
| leds-spi-byte.c | ||
| leds-ss4200.c | ||
| leds-sunfire.c | ||
| leds-syscon.c | ||
| leds-tca6507.c | ||
| leds-ti-lmu-common.c | ||
| leds-tlc591xx.c | ||
| leds-tps6105x.c | ||
| leds-turris-omnia.c | ||
| leds-wm831x-status.c | ||
| leds-wm8350.c | ||
| leds-wrap.c | ||
| leds.h | ||
| Makefile | ||
| TODO | ||
| uleds.c | ||