[PATCH] debugfs: check return value correctly

[Akinobu Mita]

The return value is stored in "*dentry", not in "dentry".

Cc: Greg Kroah-Hartman <gregkh@xxxxxxx>
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>

Index: work-fault-inject/fs/debugfs/inode.c
===================================================================
--- work-fault-inject.orig/fs/debugfs/inode.c
+++ work-fault-inject/fs/debugfs/inode.c
@@ -147,13 +147,13 @@ static int debugfs_create_by_name(const 
 	*dentry = NULL;
 	mutex_lock(&parent->d_inode->i_mutex);
 	*dentry = lookup_one_len(name, parent, strlen(name));
-	if (!IS_ERR(dentry)) {
+	if (!IS_ERR(*dentry)) {
 		if ((mode & S_IFMT) == S_IFDIR)
 			error = debugfs_mkdir(parent->d_inode, *dentry, mode);
 		else 
 			error = debugfs_create(parent->d_inode, *dentry, mode);
 	} else
-		error = PTR_ERR(dentry);
+		error = PTR_ERR(*dentry);
 	mutex_unlock(&parent->d_inode->i_mutex);
 
 	return error;
-
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