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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-02-27 22:56:28 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-02-27 22:56:28 +0100
commit7247f0c24c17a46a9732a801e57b627fb6bbf294 (patch)
tree45f403ab779aba6bedf515f8610ad07f213add81 /drivers/acpi/ec.c
parenta2b691772acd5bcd8b64693e0fdbc3431d266db4 (diff)
ACPI: EC: Drop AE_NOT_FOUND special case from ec_install_handlers()
If the status value returned by acpi_install_address_space_handler() in ec_install_handlers() is AE_NOT_FOUND, it is treated in a special way, apparently because it might mean a _REG method evaluation failure (at least that is the case according to the comment in there), but acpi_install_address_space_handler() does not take _REG evaluation errors into account at all, so the AE_NOT_FOUND special handling is confusing at best. For this reason, change ec_install_handlers() to stop the EC and return -ENODEV on all acpi_install_address_space_handler() errors. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/ec.c')
-rw-r--r--drivers/acpi/ec.c15
1 files changed, 2 insertions, 13 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 3153e7684053..6f501d552e6e 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1489,19 +1489,8 @@ static int ec_install_handlers(struct acpi_ec *ec, struct acpi_device *device)
&acpi_ec_space_handler,
NULL, ec);
if (ACPI_FAILURE(status)) {
- if (status == AE_NOT_FOUND) {
- /*
- * Maybe OS fails in evaluating the _REG
- * object. The AE_NOT_FOUND error will be
- * ignored and OS * continue to initialize
- * EC.
- */
- pr_err("Fail in evaluating the _REG object"
- " of EC device. Broken bios is suspected.\n");
- } else {
- acpi_ec_stop(ec, false);
- return -ENODEV;
- }
+ acpi_ec_stop(ec, false);
+ return -ENODEV;
}
set_bit(EC_FLAGS_EC_HANDLER_INSTALLED, &ec->flags);
}