3 files changed, 7 insertions, 32 deletions

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index c463ca4a8fff..1ba2192ae667 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -5384,10 +5384,9 @@ static int binder_ioctl_write_read(struct file *filp, unsigned long arg,
 	void __user *ubuf = (void __user *)arg;
 	struct binder_write_read bwr;
 
-	if (copy_from_user(&bwr, ubuf, sizeof(bwr))) {
-		ret = -EFAULT;
-		goto out;
-	}
+	if (copy_from_user(&bwr, ubuf, sizeof(bwr)))
+		return -EFAULT;
+
 	binder_debug(BINDER_DEBUG_READ_WRITE,
 		     "%d:%d write %lld at %016llx, read %lld at %016llx\n",
 		     proc->pid, thread->pid,
@@ -5402,8 +5401,6 @@ static int binder_ioctl_write_read(struct file *filp, unsigned long arg,
 		trace_binder_write_done(ret);
 		if (ret < 0) {
 			bwr.read_consumed = 0;
-			if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
-				ret = -EFAULT;
 			goto out;
 		}
 	}
@@ -5417,22 +5414,17 @@ static int binder_ioctl_write_read(struct file *filp, unsigned long arg,
 		if (!binder_worklist_empty_ilocked(&proc->todo))
 			binder_wakeup_proc_ilocked(proc);
 		binder_inner_proc_unlock(proc);
-		if (ret < 0) {
-			if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
-				ret = -EFAULT;
+		if (ret < 0)
 			goto out;
-		}
 	}
 	binder_debug(BINDER_DEBUG_READ_WRITE,
 		     "%d:%d wrote %lld of %lld, read return %lld of %lld\n",
 		     proc->pid, thread->pid,
 		     (u64)bwr.write_consumed, (u64)bwr.write_size,
 		     (u64)bwr.read_consumed, (u64)bwr.read_size);
-	if (copy_to_user(ubuf, &bwr, sizeof(bwr))) {
-		ret = -EFAULT;
-		goto out;
-	}
 out:
+	if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
+		ret = -EFAULT;
 	return ret;
 }
 
@@ -6128,7 +6120,7 @@ static int binder_release(struct inode *nodp, struct file *filp)
 	debugfs_remove(proc->debugfs_entry);
 
 	if (proc->binderfs_entry) {
-		binderfs_remove_file(proc->binderfs_entry);
+		simple_recursive_removal(proc->binderfs_entry, NULL);
 		proc->binderfs_entry = NULL;
 	}
 
diff --git a/drivers/android/binder_internal.h b/drivers/android/binder_internal.h
index 1ba5caf1d88d..a5fd23dcafcd 100644
--- a/drivers/android/binder_internal.h
+++ b/drivers/android/binder_internal.h
@@ -81,7 +81,6 @@ extern bool is_binderfs_device(const struct inode *inode);
 extern struct dentry *binderfs_create_file(struct dentry *dir, const char *name,
 					   const struct file_operations *fops,
 					   void *data);
-extern void binderfs_remove_file(struct dentry *dentry);
 #else
 static inline bool is_binderfs_device(const struct inode *inode)
 {
@@ -94,7 +93,6 @@ static inline struct dentry *binderfs_create_file(struct dentry *dir,
 {
 	return NULL;
 }
-static inline void binderfs_remove_file(struct dentry *dentry) {}
 #endif
 
 #ifdef CONFIG_ANDROID_BINDERFS
diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index 024275dbfdd8..acc946bb1457 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -500,21 +500,6 @@ static struct dentry *binderfs_create_dentry(struct dentry *parent,
 	return dentry;
 }
 
-void binderfs_remove_file(struct dentry *dentry)
-{
-	struct inode *parent_inode;
-
-	parent_inode = d_inode(dentry->d_parent);
-	inode_lock(parent_inode);
-	if (simple_positive(dentry)) {
-		dget(dentry);
-		simple_unlink(parent_inode, dentry);
-		d_delete(dentry);
-		dput(dentry);
-	}
-	inode_unlock(parent_inode);
-}
-
 struct dentry *binderfs_create_file(struct dentry *parent, const char *name,
 				    const struct file_operations *fops,
 				    void *data)