diff options
| -rw-r--r-- | arch/x86/pci/mmconfig-shared.c | 1 | ||||
| -rw-r--r-- | arch/x86/pci/mmconfig_32.c | 4 | ||||
| -rw-r--r-- | arch/x86/pci/mmconfig_64.c | 22 | ||||
| -rw-r--r-- | arch/x86/pci/pci.h | 1 |
4 files changed, 27 insertions, 1 deletions
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index 498e35e..8f20495 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -300,6 +300,7 @@ static void __init pci_mmcfg_reject_broken(void) reject: printk(KERN_ERR "PCI: Not using MMCONFIG.\n"); + pci_mmcfg_arch_free(); kfree(pci_mmcfg_config); pci_mmcfg_config = NULL; pci_mmcfg_config_num = 0; diff --git a/arch/x86/pci/mmconfig_32.c b/arch/x86/pci/mmconfig_32.c index 081816a..f3c761d 100644 --- a/arch/x86/pci/mmconfig_32.c +++ b/arch/x86/pci/mmconfig_32.c @@ -136,3 +136,7 @@ int __init pci_mmcfg_arch_init(void) raw_pci_ext_ops = &pci_mmcfg; return 1; } + +void __init pci_mmcfg_arch_free(void) +{ +} diff --git a/arch/x86/pci/mmconfig_64.c b/arch/x86/pci/mmconfig_64.c index 9207fd4..a199416 100644 --- a/arch/x86/pci/mmconfig_64.c +++ b/arch/x86/pci/mmconfig_64.c @@ -127,7 +127,7 @@ static void __iomem * __init mcfg_ioremap(struct acpi_mcfg_allocation *cfg) int __init pci_mmcfg_arch_init(void) { int i; - pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * + pci_mmcfg_virt = kzalloc(sizeof(*pci_mmcfg_virt) * pci_mmcfg_config_num, GFP_KERNEL); if (pci_mmcfg_virt == NULL) { printk(KERN_ERR "PCI: Can not allocate memory for mmconfig structures\n"); @@ -141,9 +141,29 @@ int __init pci_mmcfg_arch_init(void) printk(KERN_ERR "PCI: Cannot map mmconfig aperture for " "segment %d\n", pci_mmcfg_config[i].pci_segment); + pci_mmcfg_arch_free(); return 0; } } raw_pci_ext_ops = &pci_mmcfg; return 1; } + +void __init pci_mmcfg_arch_free(void) +{ + int i; + + if (pci_mmcfg_virt == NULL) + return; + + for (i = 0; i < pci_mmcfg_config_num; ++i) { + if (pci_mmcfg_virt[i].virt) { + iounmap(pci_mmcfg_virt[i].virt); + pci_mmcfg_virt[i].virt = NULL; + pci_mmcfg_virt[i].cfg = NULL; + } + } + + kfree(pci_mmcfg_virt); + pci_mmcfg_virt = NULL; +} diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h index 28b9b72..c8b89a8 100644 --- a/arch/x86/pci/pci.h +++ b/arch/x86/pci/pci.h @@ -101,6 +101,7 @@ extern void pci_pcbios_init(void); /* pci-mmconfig.c */ extern int __init pci_mmcfg_arch_init(void); +extern void __init pci_mmcfg_arch_free(void); /* * AMD Fam10h CPUs are buggy, and cannot access MMIO config space |
