From a8399c512b5fa2cf80831f5b4cd3adffd299fbe3 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Sun, 4 Nov 2007 00:44:31 -0400 Subject: [PATCH] Input: i8042 - use synchronize_irq() instead of synchronize_sched() 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 --- drivers/input/serio/i8042.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 1a0cea3c5294..13da06fd0b8f 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -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; } -- GitLab