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authorChristian Brauner <christian@brauner.io>2019-01-21 11:48:07 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-01-22 12:25:53 +0100
commit29ef1c8e16aed079ac09989d752e38d412b6e1a8 (patch)
treee0afd0214cb6525f771e79c8488dccf11c85e92b /drivers/android
parent4198479524aeccaf53c3a4cc73784982535573fa (diff)
downloadlinux-29ef1c8e16aed079ac09989d752e38d412b6e1a8.tar.bz2
binderfs: drop lock in binderfs_binder_ctl_create
The binderfs_binder_ctl_create() call is a no-op on subsequent calls and the first call is done before we unlock the suberblock. Hence, there is no need to take inode_lock() in there. Let's remove it. Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Christian Brauner <christian@brauner.io> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android')
-rw-r--r--drivers/android/binderfs.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index ba88be172aee..d537dcdb5d65 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -400,8 +400,6 @@ static int binderfs_binder_ctl_create(struct super_block *sb)
if (!device)
return -ENOMEM;
- inode_lock(d_inode(root));
-
/* If we have already created a binder-control node, return. */
if (info->control_dentry) {
ret = 0;
@@ -440,12 +438,10 @@ static int binderfs_binder_ctl_create(struct super_block *sb)
inode->i_private = device;
info->control_dentry = dentry;
d_add(dentry, inode);
- inode_unlock(d_inode(root));
return 0;
out:
- inode_unlock(d_inode(root));
kfree(device);
iput(inode);