Merge branch 'bna-remove-error-checking-for-debugfs-create-apis'

Zhen Lei says:

====================
bna: Remove error checking for debugfs create APIs

1. Fix the incorrect return value check for debugfs_create_dir() and
   debugfs_create_file(), which returns ERR_PTR(-ERROR) instead of NULL
   when it fails.
2. Remove field bnad_dentry_files[] in struct bnad. When a directory is
   deleted, files in the directory are automatically deleted. Therefore,
   there is need to record these files.
====================

Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>

Author: kuba-moo

drivers/net/ethernet/brocade/bna/bnad.h

@@ -351,7 +351,6 @@ struct bnad {
 	/* debugfs specific data */
 	char	*regdata;
 	u32	reglen;
-	struct dentry *bnad_dentry_files[5];
 	struct dentry *port_debugfs_root;
 };
 

drivers/net/ethernet/brocade/bna/bnad_debugfs.c

@@ -500,11 +500,6 @@ bnad_debugfs_init(struct bnad *bnad)
 	if (!bna_debugfs_root) {
 		bna_debugfs_root = debugfs_create_dir("bna", NULL);
 		atomic_set(&bna_debugfs_port_count, 0);
-		if (!bna_debugfs_root) {
-			netdev_warn(bnad->netdev,
-				    "debugfs root dir creation failed\n");
-			return;
-		}
 	}
 
 	/* Setup the pci_dev debugfs directory for the port */
@@ -517,18 +512,11 @@ bnad_debugfs_init(struct bnad *bnad)
 
 		for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) {
 			file = &bnad_debugfs_files[i];
-			bnad->bnad_dentry_files[i] =
-					debugfs_create_file(file->name,
-							file->mode,
-							bnad->port_debugfs_root,
-							bnad,
-							file->fops);
-			if (!bnad->bnad_dentry_files[i]) {
-				netdev_warn(bnad->netdev,
-					    "create %s entry failed\n",
-					    file->name);
-				return;
-			}
+			debugfs_create_file(file->name,
+					    file->mode,
+					    bnad->port_debugfs_root,
+					    bnad,
+					    file->fops);
 		}
 	}
 }
@@ -537,15 +525,6 @@ bnad_debugfs_init(struct bnad *bnad)
 void
 bnad_debugfs_uninit(struct bnad *bnad)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(bnad_debugfs_files); i++) {
-		if (bnad->bnad_dentry_files[i]) {
-			debugfs_remove(bnad->bnad_dentry_files[i]);
-			bnad->bnad_dentry_files[i] = NULL;
-		}
-	}
-
 	/* Remove the pci_dev debugfs directory for the port */
 	if (bnad->port_debugfs_root) {
 		debugfs_remove(bnad->port_debugfs_root);