linux-kernel - [PATCH 2/3] staging: android: ion_test: unregister the misc device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1427909900-22650-3-git-send-email-tranmanphong@gmail.com>
Date:	Thu,  2 Apr 2015 00:38:19 +0700
From:	Phong Tran <tranmanphong@...il.com>
To:	gregkh@...uxfoundation.org, arve@...roid.com, riandrews@...roid.com
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Phong Tran <tranmanphong@...il.com>
Subject: [PATCH 2/3] staging: android: ion_test: unregister the misc device

Add the remove() method for deregister from misc device
when it's unloaded.

Signed-off-by: Phong Tran <tranmanphong@...il.com>
---
 drivers/staging/android/ion/ion_test.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/staging/android/ion/ion_test.c b/drivers/staging/android/ion/ion_test.c
index 3bc461c..f36a35e 100644
--- a/drivers/staging/android/ion/ion_test.c
+++ b/drivers/staging/android/ion/ion_test.c
@@ -261,7 +261,25 @@ static int __init ion_test_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static int ion_test_remove(struct platform_device *pdev)
+{
+	int ret = 0;
+	struct ion_test_device *testdev;
+
+	testdev = platform_get_drvdata(pdev);
+
+	if (!testdev) {
+		pr_err("failed to get pdev data.\n");
+		return -ENODATA;
+	}
+
+	ret = misc_deregister(&testdev->misc);
+
+	return ret;
+}
+
 static struct platform_driver ion_test_platform_driver = {
+	.remove = ion_test_remove,
 	.driver = {
 		.name = "ion-test",
 	},
-- 
2.1.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/