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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
--
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