diff options
| -rw-r--r-- | drivers/acpi/ec.c | 32 |
1 files changed, 14 insertions, 18 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 69b04d430f0..e3716222934 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -600,7 +600,7 @@ acpi_ec_space_handler ( { int result = 0; struct acpi_ec *ec = NULL; - u32 temp = 0; + u64 temp = *value; acpi_integer f_v = 0; int i = 0; @@ -609,10 +609,9 @@ acpi_ec_space_handler ( if ((address > 0xFF) || !value || !handler_context) return_VALUE(AE_BAD_PARAMETER); - if(bit_width != 8) { + if (bit_width != 8 && acpi_strict) { printk(KERN_WARNING PREFIX "acpi_ec_space_handler: bit_width should be 8\n"); - if (acpi_strict) - return_VALUE(AE_BAD_PARAMETER); + return_VALUE(AE_BAD_PARAMETER); } ec = (struct acpi_ec *) handler_context; @@ -620,11 +619,11 @@ acpi_ec_space_handler ( next_byte: switch (function) { case ACPI_READ: - result = acpi_ec_read(ec, (u8) address, &temp); - *value = (acpi_integer) temp; + temp = 0; + result = acpi_ec_read(ec, (u8) address, (u32 *)&temp); break; case ACPI_WRITE: - result = acpi_ec_write(ec, (u8) address, (u8) *value); + result = acpi_ec_write(ec, (u8) address, (u8) temp); break; default: result = -EINVAL; @@ -633,19 +632,18 @@ next_byte: } bit_width -= 8; - if(bit_width){ - - if(function == ACPI_READ) - f_v |= (acpi_integer) (*value) << 8*i; - if(function == ACPI_WRITE) - (*value) >>=8; + if (bit_width) { + if (function == ACPI_READ) + f_v |= temp << 8 * i; + if (function == ACPI_WRITE) + temp >>= 8; i++; + (u8)address ++; goto next_byte; } - - if(function == ACPI_READ){ - f_v |= (acpi_integer) (*value) << 8*i; + if (function == ACPI_READ) { + f_v |= temp << 8 * i; *value = f_v; } @@ -664,8 +662,6 @@ out: default: return_VALUE(AE_OK); } - - } |