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| author | Yinghai Lu <yinghai@kernel.org> | 2009-02-11 01:06:59 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-11 14:20:10 +0100 |
| commit | 8e1568f3500287d0b36c9776132cb53a42d5651d (patch) | |
| tree | 82740294d41f0e6268b5c3b44f08ef4be5bed708 /drivers/pci/dmar.c | |
| parent | b825e6cc7b1401862531df497a4a4daff8102ed5 (diff) | |
| download | linux-stable-8e1568f3500287d0b36c9776132cb53a42d5651d.tar.gz linux-stable-8e1568f3500287d0b36c9776132cb53a42d5651d.tar.bz2 linux-stable-8e1568f3500287d0b36c9776132cb53a42d5651d.zip | |
pci, x86, acpi: fix early_ioremap() leak
Pawel reported:
------------[ cut here ]------------
WARNING: at arch/x86/mm/ioremap.c:616 check_early_ioremap_leak+0x52/0x67()
Hardware name:
Debug warning: early ioremap leak of 1 areas detected.
Modules linked in:
Pid: 1, comm: swapper Not tainted 2.6.29-rc4-tip #2
...
Reported-by: Pawel Dziekonski <dzieko@gmail.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/pci/dmar.c')
| -rw-r--r-- | drivers/pci/dmar.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index f5a662a50acb..519f5f91e765 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -42,6 +42,7 @@ LIST_HEAD(dmar_drhd_units); static struct acpi_table_header * __initdata dmar_tbl; +static acpi_size dmar_tbl_size; static void __init dmar_register_drhd_unit(struct dmar_drhd_unit *drhd) { @@ -288,8 +289,9 @@ static int __init dmar_table_detect(void) acpi_status status = AE_OK; /* if we could find DMAR table, then there are DMAR devices */ - status = acpi_get_table(ACPI_SIG_DMAR, 0, - (struct acpi_table_header **)&dmar_tbl); + status = acpi_get_table_with_size(ACPI_SIG_DMAR, 0, + (struct acpi_table_header **)&dmar_tbl, + &dmar_tbl_size); if (ACPI_SUCCESS(status) && !dmar_tbl) { printk (KERN_WARNING PREFIX "Unable to map DMAR\n"); @@ -481,6 +483,7 @@ void __init detect_intel_iommu(void) iommu_detected = 1; #endif } + early_acpi_os_unmap_memory(dmar_tbl, dmar_tbl_size); dmar_tbl = NULL; } |