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[PATCH] genirq: fix irq flow handler uninstall

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The sanity check for no_irq_chip in __set_irq_hander() is unconditional on
both install and uninstall of an handler.  This triggers false warnings and
replaces no_irq_chip by dummy_irq_chip in the uninstall case.

Check only, when a real handler is installed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Thomas Gleixner 2006-12-22 01:08:14 -08:00 committed by Linus Torvalds
parent e903387f1e
commit 9d7ac8be4b
1 changed files with 1 additions and 2 deletions
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3
kernel/irq/chip.c
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@ -517,8 +517,7 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
if (!handle)
handle = handle_bad_irq;
if (desc->chip == &no_irq_chip) {
else if (desc->chip == &no_irq_chip) {
printk(KERN_WARNING "Trying to install %sinterrupt handler "
"for IRQ%d\n", is_chained ? "chained " : "", irq);
/*