linux-kernel - [PATCH 2.6.37] led_class: fix typo in blink API

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Date:	Sat, 27 Nov 2010 19:42:08 +0100
From:	Johannes Berg <johannes@...solutions.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Richard Purdie <rpurdie@...ux.intel.com>
Subject: [PATCH 2.6.37] led_class: fix typo in blink API

From: Johannes Berg <johannes.berg@...el.com>

When I added led_blink_set I had a typo: the
return value of the hw offload is a regular
error code that is zero when succesful, and
in that case software emulation should not
be used, rather than the other way around.

Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
It'd be nice to get this into 2.6.37 since the patch
that has the bug is in there. Sorry about that -- I
had tested the software implementation extensively but
apparently never tested the hw offload part.

 drivers/leds/led-class.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- wireless-testing.orig/drivers/leds/led-class.c	2010-11-27 19:32:24.000000000 +0100
+++ wireless-testing/drivers/leds/led-class.c	2010-11-27 19:35:41.000000000 +0100
@@ -267,7 +267,7 @@ void led_blink_set(struct led_classdev *
 		   unsigned long *delay_off)
 {
 	if (led_cdev->blink_set &&
-	    led_cdev->blink_set(led_cdev, delay_on, delay_off))
+	    !led_cdev->blink_set(led_cdev, delay_on, delay_off))
 		return;
 
 	/* blink with 1 Hz as default if nothing specified */


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