linux-kernel - [PATCH] Mailbox: Fix return value check in pcc

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Message-Id: <1421197856-15455-1-git-send-email-weiyj_lk@163.com>
Date:	Wed, 14 Jan 2015 09:10:56 +0800
From:	weiyj_lk@....com
To:	Jassi Brar <jassisinghbrar@...il.com>
Cc:	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] Mailbox: Fix return value check in pcc_init()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

In case of error, the function platform_create_bundle() returns
ERR_PTR() and never returns NULL. The NULL test in the return value
check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>
---
 drivers/mailbox/pcc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 6dbf6fc..70576fb 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -393,9 +393,9 @@ static int __init pcc_init(void)
 	pcc_pdev = platform_create_bundle(&pcc_mbox_driver,
 			pcc_mbox_probe, NULL, 0, NULL, 0);
 
-	if (!pcc_pdev) {
+	if (IS_ERR(pcc_pdev)) {
 		pr_err("Err creating PCC platform bundle\n");
-		return -ENODEV;
+		return PTR_ERR(pcc_pdev);
 	}
 
 	return 0;

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