ACPICA: Add error msg for unsupported I/O requests (not 8/16/32 bit length)

Found during ACPICA debugging.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index 5f1605874655..f8fbea947013 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -134,6 +134,8 @@ 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)) {
+                ACPI_ERROR((AE_INFO,
+                            "Bad BitWidth parameter: %8.8X", bit_width));
                 return AE_BAD_PARAMETER;
         }