From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 10 Aug 2019 12:17:31 +0200
Subject: ixgbe: no need to check return value of debugfs_create functions
Patch-mainline: v5.4-rc1
Git-commit: 35dc61ebfc10849121ce059af7343bf470d1fc1b
References: jsc#SLE-7979 jsc#SLE-7981

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: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: intel-wired-lan@lists.osuosl.org
Cc: netdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c |   22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
@@ -190,22 +190,12 @@ static const struct file_operations ixgb
 void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter)
 {
 	const char *name = pci_name(adapter->pdev);
-	struct dentry *pfile;
+
 	adapter->ixgbe_dbg_adapter = debugfs_create_dir(name, ixgbe_dbg_root);
-	if (adapter->ixgbe_dbg_adapter) {
-		pfile = debugfs_create_file("reg_ops", 0600,
-					    adapter->ixgbe_dbg_adapter, adapter,
-					    &ixgbe_dbg_reg_ops_fops);
-		if (!pfile)
-			e_dev_err("debugfs reg_ops for %s failed\n", name);
-		pfile = debugfs_create_file("netdev_ops", 0600,
-					    adapter->ixgbe_dbg_adapter, adapter,
-					    &ixgbe_dbg_netdev_ops_fops);
-		if (!pfile)
-			e_dev_err("debugfs netdev_ops for %s failed\n", name);
-	} else {
-		e_dev_err("debugfs entry for %s failed\n", name);
-	}
+	debugfs_create_file("reg_ops", 0600, adapter->ixgbe_dbg_adapter,
+			    adapter, &ixgbe_dbg_reg_ops_fops);
+	debugfs_create_file("netdev_ops", 0600, adapter->ixgbe_dbg_adapter,
+			    adapter, &ixgbe_dbg_netdev_ops_fops);
 }
 
 /**
@@ -224,8 +214,6 @@ void ixgbe_dbg_adapter_exit(struct ixgbe
 void ixgbe_dbg_init(void)
 {
 	ixgbe_dbg_root = debugfs_create_dir(ixgbe_driver_name, NULL);
-	if (ixgbe_dbg_root == NULL)
-		pr_err("init of debugfs failed\n");
 }
 
 /**