From 9c6568501cbf731a910db2fcb7d094977dcb154c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Date: Wed, 29 Oct 2008 14:14:54 -0700 Subject: [ARM] gpio_free might sleep, arm architecture MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit According to the documentation gpio_free should only be called from task context only. To make this more explicit add a might sleep to all implementations. This patch changes the gpio_free implementations for the arm architecture. DaVinci is skipped on purpose to simplify the merge process for patches switching it over to use gpiolib as per request by David Brownell. Signed-off-by: Uwe Kleine-König Cc: David Brownell Cc: Andrew Victor Signed-off-by: Andrew Morton Signed-off-by: Russell King --- arch/arm/mach-orion5x/gpio.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm/mach-orion5x') diff --git a/arch/arm/mach-orion5x/gpio.c b/arch/arm/mach-orion5x/gpio.c index fc419868e39..f99d08811e5 100644 --- a/arch/arm/mach-orion5x/gpio.c +++ b/arch/arm/mach-orion5x/gpio.c @@ -165,6 +165,8 @@ EXPORT_SYMBOL(gpio_request); void gpio_free(unsigned pin) { + might_sleep(); + if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { pr_debug("%s: invalid GPIO %d\n", __func__, pin); return; -- cgit v1.2.3