Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Arthur Kiyanovski , "David S. Miller" , Sasha Levin Subject: [PATCH 4.18 088/150] net: ena: fix warning in rmmod caused by double iounmap Date: Fri, 2 Nov 2018 19:34:10 +0100 Message-Id: <20181102182909.623090841@linuxfoundation.org> In-Reply-To: <20181102182902.250560510@linuxfoundation.org> References: <20181102182902.250560510@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit List-ID: 4.18-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit d79c3888bde6581da7ff9f9d6f581900ecb5e632 ] Memory mapped with devm_ioremap is automatically freed when the driver is disconnected from the device. Therefore there is no need to explicitly call devm_iounmap. Fixes: 0857d92f71b6 ("net: ena: add missing unmap bars on device removal") Fixes: 411838e7b41c ("net: ena: fix rare kernel crash when bar memory remap fails") Signed-off-by: Arthur Kiyanovski Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 1b01cd2820ba..7093b661c50e 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -3128,15 +3128,8 @@ err_rss_init: static void ena_release_bars(struct ena_com_dev *ena_dev, struct pci_dev *pdev) { - int release_bars; + int release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & ENA_BAR_MASK; - if (ena_dev->mem_bar) - devm_iounmap(&pdev->dev, ena_dev->mem_bar); - - if (ena_dev->reg_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); } -- 2.17.1