diff --git a/fs/proc/base.c b/fs/proc/base.c
index 511d98d09754a..df9b17dd92cb3 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2677,7 +2677,9 @@ static int proc_pident_readdir(struct file *file, struct dir_context *ctx,
 #ifdef CONFIG_SECURITY
 static int proc_pid_attr_open(struct inode *inode, struct file *file)
 {
-	return __mem_open(inode, file, PTRACE_MODE_READ_FSCREDS);
+	file->private_data = NULL;
+	__mem_open(inode, file, PTRACE_MODE_READ_FSCREDS);
+	return 0;
 }
 
 static ssize_t proc_pid_attr_read(struct file * file, char __user * buf,