linux-kernel - [PATCH 1/2] binderfs: remove wrong kern

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Date:   Sun,  6 Jan 2019 15:05:40 +0100
From:   Christian Brauner <christian@...uner.io>
To:     gregkh@...uxfoundation.org, tkjos@...roid.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Cc:     arve@...roid.com, maco@...roid.com, joel@...lfernandes.org,
        tkjos@...gle.com, Christian Brauner <christian@...uner.io>
Subject: [PATCH 1/2] binderfs: remove wrong kern_mount() call

The binderfs filesystem never needs to be mounted by the kernel itself.
This is conceptually wrong and should never have been done in the first
place.

Fixes: 3ad20fe393b ("binder: implement binderfs")
Signed-off-by: Christian Brauner <christian.brauner@...ntu.com>
---
 drivers/android/binderfs.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index 7496b10532aa..6f68d6217eb3 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -40,8 +40,6 @@
 #define INTSTRLEN 21
 #define BINDERFS_MAX_MINOR (1U << MINORBITS)
 
-static struct vfsmount *binderfs_mnt;
-
 static dev_t binderfs_dev;
 static DEFINE_MUTEX(binderfs_minors_mutex);
 static DEFINE_IDA(binderfs_minors);
@@ -530,14 +528,6 @@ static int __init init_binderfs(void)
 		return ret;
 	}
 
-	binderfs_mnt = kern_mount(&binder_fs_type);
-	if (IS_ERR(binderfs_mnt)) {
-		ret = PTR_ERR(binderfs_mnt);
-		binderfs_mnt = NULL;
-		unregister_filesystem(&binder_fs_type);
-		unregister_chrdev_region(binderfs_dev, BINDERFS_MAX_MINOR);
-	}
-
 	return ret;
 }
 
-- 
2.19.1