4.18-stable review patch. If anyone has any objections, please let me know.
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[ 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 akiyano@amazon.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- 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); }