]> git.baikalelectronics.ru Git - kernel.git/commit
HID: sensor-hub: make dyn_callback_lock IRQ-safe
authorJiri Kosina <jkosina@suse.cz>
Tue, 10 Jun 2014 09:05:43 +0000 (11:05 +0200)
committerJiri Kosina <jkosina@suse.cz>
Tue, 10 Jun 2014 09:05:43 +0000 (11:05 +0200)
commit03d240b94cb5b3c1747200ae80d923b92e8c9df3
tree6423de601e8ee6eb56bc79403d6a05351e735ade
parent9c4a5447145aba83aadb21754b505ad419c2cf3d
HID: sensor-hub: make dyn_callback_lock IRQ-safe

dyn_callback_lock is being taken from IRQ context through hid_irq_in() ->
hid_input_report() -> sensor_hub_raw_event() -> sensor_hub_get_callback(),
therefore anyone else acquiring it needs to disable IRQs to disable deadlocks.

Reported-by: Alexander Holler <holler@ahsoftware.de>
Tested-by: Alexander Holler <holler@ahsoftware.de>
Reported-by: Reyad Attiyat <reyad.attiyat@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-sensor-hub.c