diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c
index 7296127181ec..ee2bdc7ed0da 100644
--- a/drivers/char/ipmi/ipmb_dev_int.c
+++ b/drivers/char/ipmi/ipmb_dev_int.c
@@ -321,6 +321,9 @@ static int ipmb_probe(struct i2c_client *client)
 	ipmb_dev->miscdev.name = devm_kasprintf(&client->dev, GFP_KERNEL,
 						"%s%d", "ipmb-",
 						client->adapter->nr);
+	if (!ipmb_dev->miscdev.name)
+		return -ENOMEM;
+
 	ipmb_dev->miscdev.fops = &ipmb_fops;
 	ipmb_dev->miscdev.parent = &client->dev;
 	ret = misc_register(&ipmb_dev->miscdev);
@@ -355,11 +358,13 @@ static const struct i2c_device_id ipmb_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, ipmb_id);
 
+#ifdef CONFIG_ACPI
 static const struct acpi_device_id acpi_ipmb_id[] = {
 	{ "IPMB0001", 0 },
 	{},
 };
 MODULE_DEVICE_TABLE(acpi, acpi_ipmb_id);
+#endif
 
 static struct i2c_driver ipmb_driver = {
 	.driver = {
diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index 332082e02ea5..e6ba35b71f10 100644
--- a/drivers/char/ipmi/ipmi_devintf.c
+++ b/drivers/char/ipmi/ipmi_devintf.c
@@ -122,12 +122,9 @@ out:
 static int ipmi_release(struct inode *inode, struct file *file)
 {
 	struct ipmi_file_private *priv = file->private_data;
-	int                      rv;
 	struct ipmi_recv_msg *msg, *next;
 
-	rv = ipmi_destroy_user(priv->user);
-	if (rv)
-		return rv;
+	ipmi_destroy_user(priv->user);
 
 	list_for_each_entry_safe(msg, next, &priv->recv_msgs, link)
 		ipmi_free_recv_msg(msg);
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index e12b531f5c2f..1e5313748f8b 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -1398,13 +1398,11 @@ static void _ipmi_destroy_user(struct ipmi_user *user)
 	module_put(owner);
 }
 
-int ipmi_destroy_user(struct ipmi_user *user)
+void ipmi_destroy_user(struct ipmi_user *user)
 {
 	_ipmi_destroy_user(user);
 
 	kref_put(&user->refcount, free_user);
-
-	return 0;
 }
 EXPORT_SYMBOL(ipmi_destroy_user);
 
diff --git a/drivers/char/ipmi/ipmi_poweroff.c b/drivers/char/ipmi/ipmi_poweroff.c
index 941d2dcc8c9d..05f17e3e6207 100644
--- a/drivers/char/ipmi/ipmi_poweroff.c
+++ b/drivers/char/ipmi/ipmi_poweroff.c
@@ -699,8 +699,6 @@ static int __init ipmi_poweroff_init(void)
 #ifdef MODULE
 static void __exit ipmi_poweroff_cleanup(void)
 {
-	int rv;
-
 #ifdef CONFIG_PROC_FS
 	unregister_sysctl_table(ipmi_table_header);
 #endif
@@ -708,9 +706,7 @@ static void __exit ipmi_poweroff_cleanup(void)
 	ipmi_smi_watcher_unregister(&smi_watcher);
 
 	if (ready) {
-		rv = ipmi_destroy_user(ipmi_user);
-		if (rv)
-			pr_err("could not cleanup the IPMI user: 0x%x\n", rv);
+		ipmi_destroy_user(ipmi_user);
 		pm_power_off = old_poweroff_func;
 	}
 }
diff --git a/drivers/char/ipmi/ipmi_si_pci.c b/drivers/char/ipmi/ipmi_si_pci.c
index b83d55685b22..8c0ea637aba0 100644
--- a/drivers/char/ipmi/ipmi_si_pci.c
+++ b/drivers/char/ipmi/ipmi_si_pci.c
@@ -118,7 +118,7 @@ static int ipmi_pci_probe(struct pci_dev *pdev,
 	if (io.irq)
 		io.irq_setup = ipmi_std_irq_setup;
 
-	dev_info(&pdev->dev, "%pR regsize %d spacing %d irq %d\n",
+	dev_info(&pdev->dev, "%pR regsize %u spacing %u irq %d\n",
 		 &pdev->resource[0], io.regsize, io.regspacing, io.irq);
 
 	return ipmi_si_add_smi(&io);
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 335eea80054e..f1875b2bebbc 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -1064,7 +1064,6 @@ static void ipmi_register_watchdog(int ipmi_intf)
 
 static void ipmi_unregister_watchdog(int ipmi_intf)
 {
-	int rv;
 	struct ipmi_user *loc_user = watchdog_user;
 
 	if (!loc_user)
@@ -1089,9 +1088,7 @@ static void ipmi_unregister_watchdog(int ipmi_intf)
 	mutex_lock(&ipmi_watchdog_mutex);
 
 	/* Disconnect from IPMI. */
-	rv = ipmi_destroy_user(loc_user);
-	if (rv)
-		pr_warn("error unlinking from IPMI: %d\n",  rv);
+	ipmi_destroy_user(loc_user);
 
 	/* If it comes back, restart it properly. */
 	ipmi_start_timer_on_heartbeat = 1;
diff --git a/drivers/char/ipmi/ssif_bmc.c b/drivers/char/ipmi/ssif_bmc.c
index a14fafc583d4..310f17dd9511 100644
--- a/drivers/char/ipmi/ssif_bmc.c
+++ b/drivers/char/ipmi/ssif_bmc.c
@@ -292,7 +292,6 @@ static void complete_response(struct ssif_bmc_ctx *ssif_bmc)
 	ssif_bmc->nbytes_processed = 0;
 	ssif_bmc->remain_len = 0;
 	ssif_bmc->busy = false;
-	memset(&ssif_bmc->part_buf, 0, sizeof(struct ssif_part_buffer));
 	wake_up_all(&ssif_bmc->wait_queue);
 }
 
@@ -744,9 +743,11 @@ static void on_stop_event(struct ssif_bmc_ctx *ssif_bmc, u8 *val)
 			ssif_bmc->aborting = true;
 		}
 	} else if (ssif_bmc->state == SSIF_RES_SENDING) {
-		if (ssif_bmc->is_singlepart_read || ssif_bmc->block_num == 0xFF)
+		if (ssif_bmc->is_singlepart_read || ssif_bmc->block_num == 0xFF) {
+			memset(&ssif_bmc->part_buf, 0, sizeof(struct ssif_part_buffer));
 			/* Invalidate response buffer to denote it is sent */
 			complete_response(ssif_bmc);
+		}
 		ssif_bmc->state = SSIF_READY;
 	}
 
diff --git a/include/linux/ipmi.h b/include/linux/ipmi.h
index a1c9c0d48ebf..2f74dd90c271 100644
--- a/include/linux/ipmi.h
+++ b/include/linux/ipmi.h
@@ -126,7 +126,7 @@ int ipmi_create_user(unsigned int          if_num,
  * the users before you destroy the callback structures, it should be
  * safe, too.
  */
-int ipmi_destroy_user(struct ipmi_user *user);
+void ipmi_destroy_user(struct ipmi_user *user);
 
 /* Get the IPMI version of the BMC we are talking to. */
 int ipmi_get_version(struct ipmi_user *user,