Techwizz/kernel-fxtec-pro1x
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gpiolib: allow nested threaded irqs for poll(2)

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The pca953x driver requires the use of threaded irqs as its irq
demultiplexer can sleep.  Our irq handler can be called from any context,
so use request_any_context_irq to allow threaded irqs as well.

Signed-off-by: Daniel Gl?ckner <dg@emlix.com>
Reported-by: Ian Jeffray <ian@jeffray.co.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Daniel Gl?ckner 2010-08-10 18:02:26 -07:00 committed by Linus Torvalds
parent 5ba1821d1b
commit 364fadb32b
1 changed files with 2 additions and 2 deletions
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4
drivers/gpio/gpiolib.c
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@ -386,9 +386,9 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
}
}
ret = request_irq(irq, gpio_sysfs_irq, irq_flags,
ret = request_any_context_irq(irq, gpio_sysfs_irq, irq_flags,
"gpiolib", value_sd);
if (ret)
if (ret < 0)
goto free_id;
desc->flags |= gpio_flags;