linux-kernel - [PATCH] dell_rbu: fix error check

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Date:	Wed, 15 Nov 2006 06:18:23 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Abhay Salunke <abhay_salunke@...l.com>
Subject: [PATCH] dell_rbu: fix error check

platform_device_register_simple() returns error code as pointer
when it fails. The return value should be checked by IS_ERR().

Cc: Abhay Salunke <abhay_salunke@...l.com>
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>

 drivers/firmware/dell_rbu.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

Index: work-fault-inject/drivers/firmware/dell_rbu.c
===================================================================
--- work-fault-inject.orig/drivers/firmware/dell_rbu.c
+++ work-fault-inject/drivers/firmware/dell_rbu.c
@@ -705,17 +705,16 @@ static struct bin_attribute rbu_packet_s
 
 static int __init dcdrbu_init(void)
 {
-	int rc = 0;
+	int rc;
 	spin_lock_init(&rbu_data.lock);
 
 	init_packet_head();
-	rbu_device =
-		platform_device_register_simple("dell_rbu", -1, NULL, 0);
-	if (!rbu_device) {
+	rbu_device = platform_device_register_simple("dell_rbu", -1, NULL, 0);
+	if (IS_ERR(rbu_device)) {
 		printk(KERN_ERR
 			"dell_rbu:%s:platform_device_register_simple "
 			"failed\n", __FUNCTION__);
-		return -EIO;
+		return PTR_ERR(rbu_device);
 	}
 
 	rc = sysfs_create_bin_file(&rbu_device->dev.kobj, &rbu_data_attr);
-
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