crypto: cavium/nitrox - no need to check return value of debugfs_create functions

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: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Srikanth Jampala <Jampala.Srikanth@cavium.com>
Cc: Yangtao Li <tiny.windzz@gmail.com>
Cc: Gadam Sreerama <sgadam@cavium.com>
Cc: Eric Biggers <ebiggers@google.com>
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/cavium/nitrox/nitrox_debugfs.c

@@ -55,31 +55,14 @@ void nitrox_debugfs_exit(struct nitrox_device *ndev)
 	ndev->debugfs_dir = NULL;
 }
 
-int nitrox_debugfs_init(struct nitrox_device *ndev)
+void nitrox_debugfs_init(struct nitrox_device *ndev)
 {
-	struct dentry *dir, *f;
+	struct dentry *dir;
 
 	dir = debugfs_create_dir(KBUILD_MODNAME, NULL);
-	if (!dir)
-		return -ENOMEM;
 
 	ndev->debugfs_dir = dir;
-	f = debugfs_create_file("firmware", 0400, dir, ndev,
-				&firmware_fops);
-	if (!f)
-		goto err;
-	f = debugfs_create_file("device", 0400, dir, ndev,
-				&device_fops);
-	if (!f)
-		goto err;
-	f = debugfs_create_file("stats", 0400, dir, ndev,
-				&stats_fops);
-	if (!f)
-		goto err;
-
-	return 0;
-
-err:
-	nitrox_debugfs_exit(ndev);
-	return -ENODEV;
+	debugfs_create_file("firmware", 0400, dir, ndev, &firmware_fops);
+	debugfs_create_file("device", 0400, dir, ndev, &device_fops);
+	debugfs_create_file("stats", 0400, dir, ndev, &stats_fops);
 }

drivers/crypto/cavium/nitrox/nitrox_debugfs.h

@@ -5,12 +5,11 @@
 #include "nitrox_dev.h"
 
 #ifdef CONFIG_DEBUG_FS
-int nitrox_debugfs_init(struct nitrox_device *ndev);
+void nitrox_debugfs_init(struct nitrox_device *ndev);
 void nitrox_debugfs_exit(struct nitrox_device *ndev);
 #else
-static inline int nitrox_debugfs_init(struct nitrox_device *ndev)
+static inline void nitrox_debugfs_init(struct nitrox_device *ndev)
 {
-	return 0;
 }
 
 static inline void nitrox_debugfs_exit(struct nitrox_device *ndev)

drivers/crypto/cavium/nitrox/nitrox_main.c

@@ -404,9 +404,7 @@ static int nitrox_probe(struct pci_dev *pdev,
 	if (err)
 		goto pf_hw_fail;
 
-	err = nitrox_debugfs_init(ndev);
-	if (err)
-		goto pf_hw_fail;
+	nitrox_debugfs_init(ndev);
 
 	/* clear the statistics */
 	atomic64_set(&ndev->stats.posted, 0);