4 files changed, 15 insertions, 36 deletions

diff --git a/drivers/net/ethernet/brocade/bna/bna_types.h b/drivers/net/ethernet/brocade/bna/bna_types.h
index a5ebd7110e07..986f43d27711 100644
--- a/drivers/net/ethernet/brocade/bna/bna_types.h
+++ b/drivers/net/ethernet/brocade/bna/bna_types.h
@@ -416,7 +416,7 @@ struct bna_ib {
 /* Tx object */
 
 /* Tx datapath control structure */
-#define BNA_Q_NAME_SIZE		16
+#define BNA_Q_NAME_SIZE		(IFNAMSIZ + 6)
 struct bna_tcb {
 	/* Fast path */
 	void			**sw_qpt;
diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index c32174484a96..ece6f3b48327 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -1534,8 +1534,9 @@ bnad_tx_msix_register(struct bnad *bnad, struct bnad_tx_info *tx_info,
 
 	for (i = 0; i < num_txqs; i++) {
 		vector_num = tx_info->tcb[i]->intr_vector;
-		sprintf(tx_info->tcb[i]->name, "%s TXQ %d", bnad->netdev->name,
-				tx_id + tx_info->tcb[i]->id);
+		snprintf(tx_info->tcb[i]->name, BNA_Q_NAME_SIZE, "%s TXQ %d",
+			 bnad->netdev->name,
+			 tx_id + tx_info->tcb[i]->id);
 		err = request_irq(bnad->msix_table[vector_num].vector,
 				  (irq_handler_t)bnad_msix_tx, 0,
 				  tx_info->tcb[i]->name,
@@ -1585,9 +1586,9 @@ bnad_rx_msix_register(struct bnad *bnad, struct bnad_rx_info *rx_info,
 
 	for (i = 0; i < num_rxps; i++) {
 		vector_num = rx_info->rx_ctrl[i].ccb->intr_vector;
-		sprintf(rx_info->rx_ctrl[i].ccb->name, "%s CQ %d",
-			bnad->netdev->name,
-			rx_id + rx_info->rx_ctrl[i].ccb->id);
+		snprintf(rx_info->rx_ctrl[i].ccb->name, BNA_Q_NAME_SIZE,
+			 "%s CQ %d", bnad->netdev->name,
+			 rx_id + rx_info->rx_ctrl[i].ccb->id);
 		err = request_irq(bnad->msix_table[vector_num].vector,
 				  (irq_handler_t)bnad_msix_rx, 0,
 				  rx_info->rx_ctrl[i].ccb->name,
@@ -3276,7 +3277,7 @@ bnad_change_mtu(struct net_device *netdev, int new_mtu)
 	mutex_lock(&bnad->conf_mutex);
 
 	mtu = netdev->mtu;
-	netdev->mtu = new_mtu;
+	WRITE_ONCE(netdev->mtu, new_mtu);
 
 	frame = BNAD_FRAME_SIZE(mtu);
 	new_frame = BNAD_FRAME_SIZE(new_mtu);
diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h
index 10b1e534030e..4396997c59d0 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.h
+++ b/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;
 };
 
diff --git a/drivers/net/ethernet/brocade/bna/bnad_debugfs.c b/drivers/net/ethernet/brocade/bna/bnad_debugfs.c
index 7246e13dd559..8f0972e6737c 100644
--- a/drivers/net/ethernet/brocade/bna/bnad_debugfs.c
+++ b/drivers/net/ethernet/brocade/bna/bnad_debugfs.c
@@ -312,7 +312,7 @@ bnad_debugfs_write_regrd(struct file *file, const char __user *buf,
 	void *kern_buf;
 
 	/* Copy the user space buf */
-	kern_buf = memdup_user(buf, nbytes);
+	kern_buf = memdup_user_nul(buf, nbytes);
 	if (IS_ERR(kern_buf))
 		return PTR_ERR(kern_buf);
 
@@ -372,7 +372,7 @@ bnad_debugfs_write_regwr(struct file *file, const char __user *buf,
 	void *kern_buf;
 
 	/* Copy the user space buf */
-	kern_buf = memdup_user(buf, nbytes);
+	kern_buf = memdup_user_nul(buf, nbytes);
 	if (IS_ERR(kern_buf))
 		return PTR_ERR(kern_buf);
 
@@ -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);