linux-kernel - [PATCH] atlas_btns: fix mixing acpi

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Date:	Tue, 13 Jul 2010 17:31:15 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Lin Ming <ming.m.lin@...el.com>, linux-input@...r.kernel.org
Subject: [PATCH] atlas_btns: fix mixing acpi_status and int for return value

To improve readability, this patch fixes mixing acpi_status
and int for return value.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 drivers/input/misc/atlas_btns.c |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c
index 7d53608..ea14800 100644
--- a/drivers/input/misc/atlas_btns.c
+++ b/drivers/input/misc/atlas_btns.c
@@ -60,12 +60,12 @@ static acpi_status acpi_atlas_button_handler(u32 function,
 		input_report_key(input_dev, atlas_keymap[code], key_down);
 		input_sync(input_dev);
 
-		status = 0;
+		status = AE_OK;
 	} else {
 		printk(KERN_WARNING "atlas: shrugged on unexpected function"
 			":function=%x,address=%lx,value=%x\n",
 			function, (unsigned long)address, (u32)*value);
-		status = -EINVAL;
+		status = AE_BAD_PARAMETER;
 	}
 
 	return status;
@@ -114,26 +114,27 @@ static int atlas_acpi_button_add(struct acpi_device *device)
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR "Atlas: Error installing addr spc handler\n");
 		input_unregister_device(input_dev);
-		status = -EINVAL;
+		err = -EINVAL;
 	}
 
-	return status;
+	return err;
 }
 
 static int atlas_acpi_button_remove(struct acpi_device *device, int type)
 {
 	acpi_status status;
+	int err = 0;
 
 	status = acpi_remove_address_space_handler(device->handle,
 				0x81, &acpi_atlas_button_handler);
 	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR "Atlas: Error removing addr spc handler\n");
-		status = -EINVAL;
+		err = -EINVAL;
 	}
 
 	input_unregister_device(input_dev);
 
-	return status;
+	return err;
 }
 
 static const struct acpi_device_id atlas_device_ids[] = {
-- 
1.5.4.3



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