dentry = chan->cb->create_buf_file(tmpname, chan->parent,
S_IRUSR, buf,
&chan->is_global);
+ if (IS_ERR(dentry))
+ dentry = NULL;
kfree(tmpname);
dentry = chan->cb->create_buf_file(NULL, NULL,
S_IRUSR, buf,
&chan->is_global);
- if (WARN_ON(dentry))
+ if (IS_ERR_OR_NULL(dentry))
goto free_buf;
}