+ gpiolib-allow-nested-threaded-irqs-for-poll2.patch added to -mm tree

+ gpiolib-allow-nested-threaded-irqs-for-poll2.patch added to -mm tree

[akpm]

The patch titled
     gpiolib: allow nested threaded irqs for poll(2)
has been added to the -mm tree.  Its filename is
     gpiolib-allow-nested-threaded-irqs-for-poll2.patch

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*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this

The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: gpiolib: allow nested threaded irqs for poll(2)
From: Daniel Glöckner <dg@emlix.com>

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 Glöckner <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>
---

 drivers/gpio/gpiolib.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -puN drivers/gpio/gpiolib.c~gpiolib-allow-nested-threaded-irqs-for-poll2 drivers/gpio/gpiolib.c
--- a/drivers/gpio/gpiolib.c~gpiolib-allow-nested-threaded-irqs-for-poll2
+++ a/drivers/gpio/gpiolib.c
@@ -386,9 +386,9 @@ static int gpio_setup_irq(struct gpio_de
 		}
 	}
 
-	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;
_

Patches currently in -mm which might be from dg@emlix.com are

linux-next.patch
gpiolib-get-rid-of-struct-poll_desc-and-worklet.patch
gpiolib-allow-nested-threaded-irqs-for-poll2.patch

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