diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/dmar.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index fb35d1bd19e..28d93b68ff0 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -100,7 +100,6 @@ static int __init dmar_parse_one_dev_scope(struct acpi_dmar_device_scope *scope, if (!pdev) { pr_warn("Device scope device [%04x:%02x:%02x.%02x] not found\n", segment, scope->bus, path->device, path->function); - *dev = NULL; return 0; } if ((scope->entry_type == ACPI_DMAR_SCOPE_TYPE_ENDPOINT && \ @@ -151,7 +150,7 @@ int __init dmar_parse_dev_scope(void *start, void *end, int *cnt, ret = dmar_parse_one_dev_scope(scope, &(*devices)[index], segment); if (ret) { - kfree(*devices); + dmar_free_dev_scope(devices, cnt); return ret; } index ++; @@ -162,6 +161,17 @@ int __init dmar_parse_dev_scope(void *start, void *end, int *cnt, return 0; } +void dmar_free_dev_scope(struct pci_dev ***devices, int *cnt) +{ + if (*devices && *cnt) { + while (--*cnt >= 0) + pci_dev_put((*devices)[*cnt]); + kfree(*devices); + *devices = NULL; + *cnt = 0; + } +} + /** * dmar_parse_one_drhd - parses exactly one DMA remapping hardware definition * structure which uniquely represent one DMA remapping hardware unit |