linux-kernel - [PATCH] nvdimm: Fix return value of nvdimm_bus_init() if class

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Message-ID: <1435482057.28808.2.camel@ingics.com>
Date:	Sun, 28 Jun 2015 17:00:57 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	Toshi Kani <toshi.kani@...com>, Christoph Hellwig <hch@....de>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] nvdimm: Fix return value of nvdimm_bus_init() if
 class_create() fails

Return proper error if class_create() fails.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/nvdimm/bus.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c
index ca80270..f6f6a91 100644
--- a/drivers/nvdimm/bus.c
+++ b/drivers/nvdimm/bus.c
@@ -644,8 +644,10 @@ int __init nvdimm_bus_init(void)
 	nvdimm_major = rc;
 
 	nd_class = class_create(THIS_MODULE, "nd");
-	if (IS_ERR(nd_class))
+	if (IS_ERR(nd_class)) {
+		rc = PTR_ERR(nd_class);
 		goto err_class;
+	}
 
 	return 0;
 
-- 
2.1.0



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