From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: [PATCH 7/8] infiniband: usnic: no need to check return value of debugfs_create functions Date: Tue, 22 Jan 2019 16:17:59 +0100 Message-ID: <20190122151800.15092-8-gregkh@linuxfoundation.org> References: <20190122151800.15092-1-gregkh@linuxfoundation.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190122151800.15092-1-gregkh@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org To: Doug Ledford , Jason Gunthorpe Cc: linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, Greg Kroah-Hartman , Christian Benvenuti , Nelson Escobar , Parvi Kaustubhi List-Id: linux-rdma@vger.kernel.org When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Cc: Christian Benvenuti Cc: Nelson Escobar Cc: Parvi Kaustubhi Cc: Doug Ledford Cc: Jason Gunthorpe Cc: linux-rdma@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/infiniband/hw/usnic/usnic_debugfs.c | 26 --------------------- 1 file changed, 26 deletions(-) diff --git a/drivers/infiniband/hw/usnic/usnic_debugfs.c b/drivers/infiniband/hw/usnic/usnic_debugfs.c index a3115709fb03..e5a3f02fb078 100644 --- a/drivers/infiniband/hw/usnic/usnic_debugfs.c +++ b/drivers/infiniband/hw/usnic/usnic_debugfs.c @@ -113,42 +113,21 @@ static const struct file_operations flowinfo_ops = { void usnic_debugfs_init(void) { debugfs_root = debugfs_create_dir(DRV_NAME, NULL); - if (IS_ERR(debugfs_root)) { - usnic_err("Failed to create debugfs root dir, check if debugfs is enabled in kernel configuration\n"); - goto out_clear_root; - } flows_dentry = debugfs_create_dir("flows", debugfs_root); - if (IS_ERR_OR_NULL(flows_dentry)) { - usnic_err("Failed to create debugfs flow dir with err %ld\n", - PTR_ERR(flows_dentry)); - goto out_free_root; - } debugfs_create_file("build-info", S_IRUGO, debugfs_root, NULL, &usnic_debugfs_buildinfo_ops); - return; - -out_free_root: - debugfs_remove_recursive(debugfs_root); -out_clear_root: - debugfs_root = NULL; } void usnic_debugfs_exit(void) { - if (!debugfs_root) - return; - debugfs_remove_recursive(debugfs_root); debugfs_root = NULL; } void usnic_debugfs_flow_add(struct usnic_ib_qp_grp_flow *qp_flow) { - if (IS_ERR_OR_NULL(flows_dentry)) - return; - scnprintf(qp_flow->dentry_name, sizeof(qp_flow->dentry_name), "%u", qp_flow->flow->flow_id); qp_flow->dbgfs_dentry = debugfs_create_file(qp_flow->dentry_name, @@ -156,11 +135,6 @@ void usnic_debugfs_flow_add(struct usnic_ib_qp_grp_flow *qp_flow) flows_dentry, qp_flow, &flowinfo_ops); - if (IS_ERR_OR_NULL(qp_flow->dbgfs_dentry)) { - usnic_err("Failed to create dbg fs entry for flow %u with error %ld\n", - qp_flow->flow->flow_id, - PTR_ERR(qp_flow->dbgfs_dentry)); - } } void usnic_debugfs_flow_remove(struct usnic_ib_qp_grp_flow *qp_flow) -- 2.20.1