leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Input: i8042 - use synchronize_irq() instead of synchronize_sched()

Browse Source 
RT guys advised me that in their kernels synchronize_sched() will not
work to ensure that all IRQ handlers run to their completion and that
synchronize_irq() should be used instead.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2007-11-04 00:44:31 -04:00
parent f0b92b961b
commit a8399c512b
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/input/serio/i8042.c
View File

@ -280,7 +280,14 @@ static void i8042_stop(struct serio *serio)
struct i8042_port *port = serio->port_data;
port->exists = 0;
synchronize_sched();
/*
* We synchronize with both AUX and KBD IRQs because there is
* a (very unlikely) chance that AUX IRQ is raised for KBD port
* and vice versa.
*/
synchronize_irq(I8042_AUX_IRQ);
synchronize_irq(I8042_KBD_IRQ);
port->serio = NULL;
}