tree 1f5fd7bf77154375fd337d4b98f2646cdc52fc9f parent 451566f45a2e6cd10ba56e7220a9dd84ba3ef550 author Luming Yu <[EMAIL PROTECTED]> Sat, 19 Mar 2005 11:54:47 -0500 committer Len Brown <[EMAIL PROTECTED]> Tue, 12 Jul 2005 07:53:38 -0400
[ACPI] fix EC access width http://bugzilla.kernel.org/show_bug.cgi?id=4346 Written-by: David Shaohua Li and Luming Yu Signed-off-by: Len Brown <[EMAIL PROTECTED]> drivers/acpi/ec.c | 32 ++++++++++++++------------------ 1 files changed, 14 insertions(+), 18 deletions(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c --- 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); } - - } - To unsubscribe from this list: send the line "unsubscribe bk-commits-head" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
