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From: Johan Hovold <johan@kernel.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
	linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
	Johan Hovold <johan@kernel.org>, stable <stable@vger.kernel.org>,
	Denis Kirjanov <kirjanov@gmail.com>,
	Mauro Carvalho Chehab <mchehab@redhat.com>
Subject: [1/2] EDAC: fix memleak in module init error path
Date: Tue, 12 Jun 2018 14:43:34 +0200
Message-ID: <20180612124335.6420-1-johan@kernel.org> (raw)

Make sure to use put_device() to free the initialised struct device so
that resources managed by driver core also gets released in the event of
a registration failure.

Fixes: de3910eb79ac ("edac: change the mem allocation scheme to make Documentation/kobject.txt happy")
Fixes: 2d56b109e3a5 ("EDAC: Handle error path in edac_mc_sysfs_init() properly")
Cc: stable <stable@vger.kernel.org>     # 3.6
Cc: Denis Kirjanov <kirjanov@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
---
 drivers/edac/edac_mc_sysfs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 7481955160a4..20374b8248f0 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -1075,14 +1075,14 @@ int __init edac_mc_sysfs_init(void)
 
 	err = device_add(mci_pdev);
 	if (err < 0)
-		goto out_dev_free;
+		goto out_put_device;
 
 	edac_dbg(0, "device %s created\n", dev_name(mci_pdev));
 
 	return 0;
 
- out_dev_free:
-	kfree(mci_pdev);
+ out_put_device:
+	put_device(mci_pdev);
  out:
 	return err;
 }

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