From: Axel Lin <axel.lin@gmail.com>
Date: Tue, 10 Jan 2012 23:09:43 +0000 (-0800)
Subject: drivers/leds/leds-mc13783.c: fix off-by-one for checking num_leds
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3b080945aa7670354364c8f9e1a3a07cbb97beb3;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

drivers/leds/leds-mc13783.c: fix off-by-one for checking num_leds

The LED id begins from 0.  Thus the maximum number of leds should be
MC13783_LED_MAX + 1.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Philippe Retornaz <philippe.retornaz@epfl.ch>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c
index c61e8c4f5469..8bc491541550 100644
--- a/drivers/leds/leds-mc13783.c
+++ b/drivers/leds/leds-mc13783.c
@@ -275,7 +275,7 @@ static int __devinit mc13783_led_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	if (pdata->num_leds < 1 || pdata->num_leds > MC13783_LED_MAX) {
+	if (pdata->num_leds < 1 || pdata->num_leds > (MC13783_LED_MAX + 1)) {
 		dev_err(&pdev->dev, "Invalid led count %d\n", pdata->num_leds);
 		return -EINVAL;
 	}