From: Edgar Hucek <hostmaster@ed-soft.at>
To: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/1] EFI iounpam fix for acpi_os_unmap_memory take two
Date: Tue, 21 Feb 2006 01:16:04 +0100 [thread overview]
Message-ID: <43FA5BC4.7050206@ed-soft.at> (raw)
When EFI is enabled acpi_os_unmap_memory trys to unmap memory
which was not mapped by acpi_os_map_memory.
Signed-off-by: Edgar Hucek <hostmaster@ed-soft.at>
diff -uNr linux-2.6.16-rc4.orig/drivers/acpi/osl.c linux-2.6.16-rc4/drivers/acpi/osl.c
--- linux-2.6.16-rc4.orig/drivers/acpi/osl.c 2006-02-19 18:48:58.000000000 +0100
+++ linux-2.6.16-rc4/drivers/acpi/osl.c 2006-02-20 15:31:44.000000000 +0100
@@ -208,7 +208,13 @@
void acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
{
- iounmap(virt);
+ if(efi_enabled) {
+ if (!(EFI_MEMORY_WB & efi_mem_attributes(virt_to_phys(virt)))) {
+ iounmap(virt);
+ }
+ } else {
+ iounmap(virt);
+ }
}
EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
next reply other threads:[~2006-02-21 0:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-21 0:16 Edgar Hucek [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-02-21 1:26 [PATCH 1/1] EFI iounpam fix for acpi_os_unmap_memory take two Li, Shaohua
2006-02-21 1:26 ` Li, Shaohua
2006-02-21 17:20 ` Bjorn Helgaas
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