[ 071/104] ACPI: Fix wrong parameter passed to memblock_reserve

Greg Kroah-Hartman
2013-05-06T23:24:04Z

From: Wang YanQing <udknight@gmail.com>

commit a6432ded299726f123b93d0132fead200551535c upstream.

Commit 53aac44 (ACPI: Store valid ACPI tables passed via early initrd
in reserved memblock areas) introduced acpi_initrd_override() that
passes a wrong value as the second argument to memblock_reserve().

Namely, the second argument of memblock_reserve() is the size of the
region, not the address of the top of it, so make
acpi_initrd_override() pass the size in there as appropriate.

[rjw: Changelog]
Signed-off-by: Wang YanQing <udknight@gmail.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/acpi/osl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -642,7 +642,7 @@ void __init acpi_initrd_override(void *d
* Both memblock_reserve and e820_add_region (via arch_reserve_mem_area)
* works fine.
*/
- memblock_reserve(acpi_tables_addr, acpi_tables_addr + all_tables_size);
+ memblock_reserve(acpi_tables_addr, all_tables_size);
arch_reserve_mem_area(acpi_tables_addr, all_tables_size);

p = early_ioremap(acpi_tables_addr, all_tables_size);