Patch "net: ena: add missing unmap bars on device removal" has been added to the 4.9-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    net: ena: add missing unmap bars on device removal

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-ena-add-missing-unmap-bars-on-device-removal.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Apr  9 17:09:24 CEST 2018
From: Netanel Belgazal <netanel@amazon.com>
Date: Sun, 11 Jun 2017 15:42:47 +0300
Subject: net: ena: add missing unmap bars on device removal

From: Netanel Belgazal <netanel@amazon.com>


[ Upstream commit 0857d92f71b6cb75281fde913554b2d5436c394b ]

This patch also change the mapping functions to devm_ functions

Fixes: 1738cd3ed342 ("Add a driver for Amazon Elastic Network Adapters (ENA)")
Signed-off-by: Netanel Belgazal <netanel@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/amazon/ena/ena_netdev.c |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -2808,6 +2808,11 @@ static void ena_release_bars(struct ena_
 {
 	int release_bars;
 
+	if (ena_dev->mem_bar)
+		devm_iounmap(&pdev->dev, ena_dev->mem_bar);
+
+	devm_iounmap(&pdev->dev, ena_dev->reg_bar);
+
 	release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & ENA_BAR_MASK;
 	pci_release_selected_regions(pdev, release_bars);
 }
@@ -2895,8 +2900,9 @@ static int ena_probe(struct pci_dev *pde
 		goto err_free_ena_dev;
 	}
 
-	ena_dev->reg_bar = ioremap(pci_resource_start(pdev, ENA_REG_BAR),
-				   pci_resource_len(pdev, ENA_REG_BAR));
+	ena_dev->reg_bar = devm_ioremap(&pdev->dev,
+					pci_resource_start(pdev, ENA_REG_BAR),
+					pci_resource_len(pdev, ENA_REG_BAR));
 	if (!ena_dev->reg_bar) {
 		dev_err(&pdev->dev, "failed to remap regs bar\n");
 		rc = -EFAULT;
@@ -2916,8 +2922,9 @@ static int ena_probe(struct pci_dev *pde
 	ena_set_push_mode(pdev, ena_dev, &get_feat_ctx);
 
 	if (ena_dev->tx_mem_queue_type == ENA_ADMIN_PLACEMENT_POLICY_DEV) {
-		ena_dev->mem_bar = ioremap_wc(pci_resource_start(pdev, ENA_MEM_BAR),
-					      pci_resource_len(pdev, ENA_MEM_BAR));
+		ena_dev->mem_bar = devm_ioremap_wc(&pdev->dev,
+						   pci_resource_start(pdev, ENA_MEM_BAR),
+						   pci_resource_len(pdev, ENA_MEM_BAR));
 		if (!ena_dev->mem_bar) {
 			rc = -EFAULT;
 			goto err_device_destroy;


Patches currently in stable-queue which might be from netanel@amazon.com are

queue-4.9/net-ena-disable-admin-msix-while-working-in-polling-mode.patch
queue-4.9/net-ena-fix-race-condition-between-submit-and-completion-admin-command.patch
queue-4.9/net-ena-fix-rare-uncompleted-admin-command-false-alarm.patch
queue-4.9/net-ena-add-missing-unmap-bars-on-device-removal.patch
queue-4.9/net-ena-add-missing-return-when-ena_com_get_io_handlers-fails.patch