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| author | Lin Ming <ming.m.lin@intel.com> | 2011-11-29 22:13:35 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-25 17:24:58 -0800 |
| commit | 55bd02eb4c6e40c2870aee19c5e36d1a85713be8 (patch) | |
| tree | 2fc87336866c866dcaec7f1458a49bfafb0b5d01 /drivers/acpi | |
| parent | 0076d42a31bac7853d3c77c3858d2685f6fe8f2d (diff) | |
| download | kernel_samsung_smdk4412-55bd02eb4c6e40c2870aee19c5e36d1a85713be8.zip kernel_samsung_smdk4412-55bd02eb4c6e40c2870aee19c5e36d1a85713be8.tar.gz kernel_samsung_smdk4412-55bd02eb4c6e40c2870aee19c5e36d1a85713be8.tar.bz2 | |
ACPICA: Put back the call to acpi_os_validate_address
commit da4d8b287abe783d30e968155614531a0937d090 upstream.
The call to acpi_os_validate_address in acpi_ds_get_region_arguments was
removed by mistake in commit 9ad19ac(ACPICA: Split large dsopcode and
dsload.c files).
Put it back.
Reported-and-bisected-by: Luca Tettamanti <kronos.it@gmail.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpica/dsargs.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c index 8c7b997..42163d8 100644 --- a/drivers/acpi/acpica/dsargs.c +++ b/drivers/acpi/acpica/dsargs.c @@ -387,5 +387,29 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) status = acpi_ds_execute_arguments(node, node->parent, extra_desc->extra.aml_length, extra_desc->extra.aml_start); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate the region address/length via the host OS */ + + status = acpi_os_validate_address(obj_desc->region.space_id, + obj_desc->region.address, + (acpi_size) obj_desc->region.length, + acpi_ut_get_node_name(node)); + + if (ACPI_FAILURE(status)) { + /* + * Invalid address/length. We will emit an error message and mark + * the region as invalid, so that it will cause an additional error if + * it is ever used. Then return AE_OK. + */ + ACPI_EXCEPTION((AE_INFO, status, + "During address validation of OpRegion [%4.4s]", + node->name.ascii)); + obj_desc->common.flags |= AOPOBJ_INVALID; + status = AE_OK; + } + return_ACPI_STATUS(status); } |