diff options
Diffstat (limited to 'drivers/acpi/acpica/hwvalid.c')
| -rw-r--r-- | drivers/acpi/acpica/hwvalid.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index e1d9c777b21..6b919127cd9 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -1,4 +1,3 @@ - /****************************************************************************** * * Module Name: hwvalid - I/O request validation @@ -6,7 +5,7 @@ *****************************************************************************/ /* - * Copyright (C) 2000 - 2010, Intel Corp. + * Copyright (C) 2000 - 2014, Intel Corp. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -58,7 +57,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width); * * The table is used to implement the Microsoft port access rules that * first appeared in Windows XP. Some ports are always illegal, and some - * ports are only illegal if the BIOS calls _OSI with a win_xP string or + * ports are only illegal if the BIOS calls _OSI with a win_XP string or * later (meaning that the BIOS itelf is post-XP.) * * This provides ACPICA with the desired port protections and @@ -66,7 +65,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width); * * Description of port entries: * DMA: DMA controller - * PIC0: Programmable Interrupt Controller (8259_a) + * PIC0: Programmable Interrupt Controller (8259A) * PIT1: System Timer 1 * PIT2: System Timer 2 failsafe * RTC: Real-time clock @@ -134,7 +133,9 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width) /* Supported widths are 8/16/32 */ if ((bit_width != 8) && (bit_width != 16) && (bit_width != 32)) { - return AE_BAD_PARAMETER; + ACPI_ERROR((AE_INFO, + "Bad BitWidth parameter: %8.8X", bit_width)); + return (AE_BAD_PARAMETER); } port_info = acpi_protected_ports; @@ -233,11 +234,11 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width) status = acpi_hw_validate_io_request(address, width); if (ACPI_SUCCESS(status)) { status = acpi_os_read_port(address, value, width); - return status; + return (status); } if (status != AE_AML_ILLEGAL_ADDRESS) { - return status; + return (status); } /* @@ -252,7 +253,7 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width) if (acpi_hw_validate_io_request(address, 8) == AE_OK) { status = acpi_os_read_port(address, &one_byte, 8); if (ACPI_FAILURE(status)) { - return status; + return (status); } *value |= (one_byte << i); @@ -261,7 +262,7 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width) address++; } - return AE_OK; + return (AE_OK); } /****************************************************************************** @@ -296,11 +297,11 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width) status = acpi_hw_validate_io_request(address, width); if (ACPI_SUCCESS(status)) { status = acpi_os_write_port(address, value, width); - return status; + return (status); } if (status != AE_AML_ILLEGAL_ADDRESS) { - return status; + return (status); } /* @@ -316,12 +317,12 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width) status = acpi_os_write_port(address, (value >> i) & 0xFF, 8); if (ACPI_FAILURE(status)) { - return status; + return (status); } } address++; } - return AE_OK; + return (AE_OK); } |