https://github.com/torvalds/linux
Revision 8c0f693c6effbc3f42f77a9e81209af9af20910c authored by Pavel Machek on 26 May 2019, 07:38:55 UTC, committed by Jacek Anaszewski on 31 May 2019, 20:29:14 UTC
It turns out that various triggers use led_blink_setup() from atomic context, so we can't do a flush_work there. Flush is still needed for slow LEDs, but we can move it to sysfs code where it is safe. WARNING: inconsistent lock state 5.2.0-rc1 #1 Tainted: G W -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes: 000000006e30541b ((work_completion)(&led_cdev->set_brightness_work)){+.?.}, at: +__flush_work+0x3b/0x38a {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x146/0x1a1 __flush_work+0x5b/0x38a flush_work+0xb/0xd led_blink_setup+0x1e/0xd3 led_blink_set+0x3f/0x44 tpt_trig_timer+0xdb/0x106 ieee80211_mod_tpt_led_trig+0xed/0x112 Fixes: 0db37915d912 ("leds: avoid races with workqueue") Signed-off-by: Pavel Machek <pavel@ucw.cz> Tested-by: Hugh Dickins <hughd@google.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
1 parent cd6c84d
Tip revision: 8c0f693c6effbc3f42f77a9e81209af9af20910c authored by Pavel Machek on 26 May 2019, 07:38:55 UTC
leds: avoid flush_work in atomic context
leds: avoid flush_work in atomic context
Tip revision: 8c0f693
File | Mode | Size |
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LICENSES | ||
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block | ||
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ipc | ||
kernel | ||
lib | ||
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net | ||
samples | ||
scripts | ||
security | ||
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tools | ||
usr | ||
virt | ||
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.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 71 bytes |
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.gitignore | -rw-r--r-- | 1.6 KB |
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COPYING | -rw-r--r-- | 423 bytes |
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Makefile | -rw-r--r-- | 58.8 KB |
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