linux-kernel - [PATCH] mfd: tries reaches -1

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Message-ID: <4981CB45.8010108@gmail.com>
Date:	Thu, 29 Jan 2009 16:29:09 +0100
From:	Roel Kluin <roel.kluin@...il.com>
To:	broonie@...nsource.wolfsonmicro.com, sameo@...nedhand.com
CC:	lkml <linux-kernel@...r.kernel.org>
Subject: [PATCH] mfd: tries reaches -1

With a postfix decrement tries will reach -1 rather than 0,
so the warning will not be issued even upon timeout.

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index f92595c..2e0e5c2 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -1111,7 +1111,7 @@ int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref)
 	do {
 		schedule_timeout_interruptible(1);
 		reg = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_1);
-	} while (tries-- && (reg & WM8350_AUXADC_POLL));
+	} while (--tries && (reg & WM8350_AUXADC_POLL));
 
 	if (!tries)
 		dev_err(wm8350->dev, "adc chn %d read timeout\n", channel);

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