From 3d5f781ddd970511c123e7ea34f32418cc75f303 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 10 Aug 2019 12:42:43 +0200
Subject: [PATCH 05/10] caif: no need to check return value of debugfs_create
 functions
Git-commit: 53f6f391786e01bf2050c03d8a36d9defdcc2831
References: git-fixes
Patch-mainline: v5.4-rc1

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: Richard Fontana <rfontana@redhat.com>
Cc: Steve Winslow <swinslow@gmail.com>
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: Denis Kirjanov <denis.kirjanov@suse.com>
---
 drivers/net/caif/caif_serial.c | 26 ++++++++++----------------
 drivers/net/caif/caif_virtio.c |  6 +-----
 2 files changed, 11 insertions(+), 21 deletions(-)

diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index a0f954f36c09..820ada5186c7 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -94,26 +94,20 @@ static inline void update_tty_status(struct ser_device *ser)
 }
 static inline void debugfs_init(struct ser_device *ser, struct tty_struct *tty)
 {
-	ser->debugfs_tty_dir =
-			debugfs_create_dir(tty->name, debugfsdir);
-	if (!IS_ERR(ser->debugfs_tty_dir)) {
-		debugfs_create_blob("last_tx_msg", 0400,
-				    ser->debugfs_tty_dir,
-				    &ser->tx_blob);
+	ser->debugfs_tty_dir = debugfs_create_dir(tty->name, debugfsdir);
 
-		debugfs_create_blob("last_rx_msg", 0400,
-				    ser->debugfs_tty_dir,
-				    &ser->rx_blob);
+	debugfs_create_blob("last_tx_msg", 0400, ser->debugfs_tty_dir,
+			    &ser->tx_blob);
 
-		debugfs_create_x32("ser_state", 0400,
-				   ser->debugfs_tty_dir,
-				   (u32 *)&ser->state);
+	debugfs_create_blob("last_rx_msg", 0400, ser->debugfs_tty_dir,
+			    &ser->rx_blob);
 
-		debugfs_create_x8("tty_status", 0400,
-				  ser->debugfs_tty_dir,
-				  &ser->tty_status);
+	debugfs_create_x32("ser_state", 0400, ser->debugfs_tty_dir,
+			   (u32 *)&ser->state);
+
+	debugfs_create_x8("tty_status", 0400, ser->debugfs_tty_dir,
+			  &ser->tty_status);
 
-	}
 	ser->tx_blob.data = ser->tx_data;
 	ser->tx_blob.size = 0;
 	ser->rx_blob.data = ser->rx_data;
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index 2814e0dee4bb..7e353349029b 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -623,11 +623,7 @@ static void cfv_netdev_setup(struct net_device *netdev)
 /* Create debugfs counters for the device */
 static inline void debugfs_init(struct cfv_info *cfv)
 {
-	cfv->debugfs =
-		debugfs_create_dir(netdev_name(cfv->ndev), NULL);
-
-	if (IS_ERR(cfv->debugfs))
-		return;
+	cfv->debugfs = debugfs_create_dir(netdev_name(cfv->ndev), NULL);
 
 	debugfs_create_u32("rx-napi-complete", 0400, cfv->debugfs,
 			   &cfv->stats.rx_napi_complete);
-- 
2.16.4