Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
"A single bugfix for the irq core to prevent silent data corruption and
malfunction of threaded interrupts under certain conditions"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Make force irq threading setup more robust
+8
-1
+8
-1
kernel/irq/manage.c
+8
-1
kernel/irq/manage.c
···
1068
1068
if (new->flags & (IRQF_NO_THREAD | IRQF_PERCPU | IRQF_ONESHOT))
1069
1069
return 0;
1070
1070
1071
+
/*
1072
+
* No further action required for interrupts which are requested as
1073
+
* threaded interrupts already
1074
+
*/
1075
+
if (new->handler == irq_default_primary_handler)
1076
+
return 0;
1077
+
1071
1078
new->flags |= IRQF_ONESHOT;
1072
1079
1073
1080
/*
···
1082
1075
* thread handler. We force thread them as well by creating a
1083
1076
* secondary action.
1084
1077
*/
1085
-
if (new->handler != irq_default_primary_handler && new->thread_fn) {
1078
+
if (new->handler && new->thread_fn) {
1086
1079
/* Allocate the secondary action */
1087
1080
new->secondary = kzalloc(sizeof(struct irqaction), GFP_KERNEL);
1088
1081
if (!new->secondary)