diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-18 13:57:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-18 13:57:38 -0700 |
| commit | dcd94dbdaff452b95d4ba11fdbf853b5bda8e6e7 (patch) | |
| tree | c8cf95ed132136934459ca61e5cbadddb7440512 | |
| parent | 8486a0f95c844b27ecc855cfec89b7e34f831cad (diff) | |
| parent | 69ab849439b506cd8dd2879527fdb64d95dd5211 (diff) | |
Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: Wake up irq thread after action has been installed
| -rw-r--r-- | kernel/irq/manage.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index d222515a5a0..0ec9ed83173 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -607,7 +607,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) */ get_task_struct(t); new->thread = t; - wake_up_process(t); } /* @@ -690,6 +689,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) (int)(new->flags & IRQF_TRIGGER_MASK)); } + new->irq = irq; *old_ptr = new; /* Reset broken irq detection when installing new handler */ @@ -707,7 +707,13 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) spin_unlock_irqrestore(&desc->lock, flags); - new->irq = irq; + /* + * Strictly no need to wake it up, but hung_task complains + * when no hard interrupt wakes the thread up. + */ + if (new->thread) + wake_up_process(new->thread); + register_irq_proc(irq, desc); new->dir = NULL; register_handler_proc(irq, new); |