diff options
| author |   Douglas Miller <dougmill@linux.vnet.ibm.com> | 2016-03-04 15:36:56 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-03-07 15:18:31 -0500 |
| commit | a69bf3c5b49ef488970c74e26ba0ec12f08491c2 (patch) | |
| tree | 20134dea81d82155f7767c0151cb251fde3c688c /drivers | |
| parent | vmxnet3: avoid calling pskb_may_pull with interrupts disabled (diff) | |
| download | linux-dev-a69bf3c5b49ef488970c74e26ba0ec12f08491c2.tar.xz linux-dev-a69bf3c5b49ef488970c74e26ba0ec12f08491c2.zip | |
be2net: Don't leak iomapped memory on removal.
The adapter->pcicfg resource is either mapped via pci_iomap() or
derived from adapter->db. During be_remove() this resource was ignored
and so could remain mapped after remove.
Add a flag to track whether adapter->pcicfg was mapped or not, then
use that flag in be_unmap_pci_bars() to unmap if required.
Fixes: 25848c901 ("use PCI MMIO read instead of config read for errors")
Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be.h | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_main.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h index cf837831304b..f9751294ece7 100644 --- a/drivers/net/ethernet/emulex/benet/be.h +++ b/drivers/net/ethernet/emulex/benet/be.h @@ -531,6 +531,7 @@ struct be_adapter { struct delayed_work be_err_detection_work; u8 err_flags; + bool pcicfg_mapped; /* pcicfg obtained via pci_iomap() */ u32 flags; u32 cmd_privileges; /* Ethtool knobs and info */ diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index db81e3d9623f..d1cf1274fc2f 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -4970,6 +4970,8 @@ static void be_unmap_pci_bars(struct be_adapter *adapter) pci_iounmap(adapter->pdev, adapter->csr); if (adapter->db) pci_iounmap(adapter->pdev, adapter->db); + if (adapter->pcicfg && adapter->pcicfg_mapped) + pci_iounmap(adapter->pdev, adapter->pcicfg); } static int db_bar(struct be_adapter *adapter) @@ -5021,8 +5023,10 @@ static int be_map_pci_bars(struct be_adapter *adapter) if (!addr) goto pci_map_err; adapter->pcicfg = addr; + adapter->pcicfg_mapped = true; } else { adapter->pcicfg = adapter->db + SRIOV_VF_PCICFG_OFFSET; + adapter->pcicfg_mapped = false; } } |