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path: root/drivers/acpi/acpica/exregion.c
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Diffstat (limited to 'drivers/acpi/acpica/exregion.c')
-rw-r--r--drivers/acpi/acpica/exregion.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index a8703cc20ad1..531000fc77d2 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -491,8 +491,10 @@ acpi_ex_data_table_space_handler(u32 function,
491{ 491{
492 ACPI_FUNCTION_TRACE(ex_data_table_space_handler); 492 ACPI_FUNCTION_TRACE(ex_data_table_space_handler);
493 493
494 /* Perform the memory read or write */ 494 /*
495 495 * Perform the memory read or write. The bit_width was already
496 * validated.
497 */
496 switch (function) { 498 switch (function) {
497 case ACPI_READ: 499 case ACPI_READ:
498 500
@@ -502,9 +504,14 @@ acpi_ex_data_table_space_handler(u32 function,
502 break; 504 break;
503 505
504 case ACPI_WRITE: 506 case ACPI_WRITE:
507
508 ACPI_MEMCPY(ACPI_PHYSADDR_TO_PTR(address),
509 ACPI_CAST_PTR(char, value), ACPI_DIV_8(bit_width));
510 break;
511
505 default: 512 default:
506 513
507 return_ACPI_STATUS(AE_SUPPORT); 514 return_ACPI_STATUS(AE_BAD_PARAMETER);
508 } 515 }
509 516
510 return_ACPI_STATUS(AE_OK); 517 return_ACPI_STATUS(AE_OK);