linux-kernel - [PATCH] gpiolib: add another might

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Date:	Thu, 17 Feb 2011 22:18:53 +0100
From:	Uwe Kleine-König 
	<u.kleine-koenig@...gutronix.de>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	linux-kernel@...r.kernel.org, kernel@...gutronix.de
Subject: [PATCH] gpiolib: add another might_sleep

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
---
 drivers/gpio/gpiolib.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 5fc5e2d..2c9f814 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1207,6 +1207,7 @@ int gpio_request(unsigned gpio, const char *label)
 	if (chip->request) {
 		/* chip->request may sleep */
 		spin_unlock_irqrestore(&gpio_lock, flags);
+		might_sleep_if(chip->can_sleep);
 		status = chip->request(chip, gpio - chip->base);
 		spin_lock_irqsave(&gpio_lock, flags);
 
-- 
1.7.2.3

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