linux-kernel - [PATCH] fix the toshiba_acpi write

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Date:	Thu, 04 Jan 2007 22:07:46 +0100
From:	Matthijs van Otterdijk <thotter@...il.com>
To:	hmacht@...e.de
CC:	len.brown@...el.com, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org
Subject: [PATCH] fix the toshiba_acpi write_lcd return value 

the write_lcd function in toshiba_acpi returns 0 on success since the big ACPI
patch merged in 2.6.20-rc2. It should return count.

Signed-off-by: Matthijs van Otterdijk <thotter@...il.com>
---
 drivers/acpi/toshiba_acpi.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -up a/drivers/acpi/toshiba_acpi.c b/drivers/acpi/toshiba_acpi.c
--- a/drivers/acpi/toshiba_acpi.c	2007-01-04 18:41:03.000000000 +0100
+++ b/drivers/acpi/toshiba_acpi.c	2007-01-04 19:36:32.000000000 +0100
@@ -321,11 +321,11 @@ static int set_lcd_status(struct backlig
 static unsigned long write_lcd(const char *buffer, unsigned long count)
 {
 	int value;
-	int ret = count;
+	int ret;
 
 	if (sscanf(buffer, " brightness : %i", &value) == 1 &&
 	    value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS)
-		ret = set_lcd(value);
+		ret = (ret = set_lcd(value)) == 0 ? count : ret;
 	else
 		ret = -EINVAL;
 	return ret;
-
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