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-rw-r--r--drivers/acpi/ec.c47
-rw-r--r--drivers/acpi/internal.h4
2 files changed, 22 insertions, 29 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 9d66a47d32fb..b94f92a095fd 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1730,10 +1730,10 @@ static const struct acpi_device_id ec_device_ids[] = {
* namespace EC before the main ACPI device enumeration process. It is
* retained for historical reason and will be deprecated in the future.
*/
-int __init acpi_ec_dsdt_probe(void)
+void __init acpi_ec_dsdt_probe(void)
{
- acpi_status status;
struct acpi_ec *ec;
+ acpi_status status;
int ret;
/*
@@ -1743,21 +1743,22 @@ int __init acpi_ec_dsdt_probe(void)
* picking up an invalid EC device.
*/
if (boot_ec)
- return -ENODEV;
+ return;
ec = acpi_ec_alloc();
if (!ec)
- return -ENOMEM;
+ return;
+
/*
* At this point, the namespace is initialized, so start to find
* the namespace objects.
*/
- status = acpi_get_devices(ec_device_ids[0].id,
- ec_parse_device, ec, NULL);
+ status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device, ec, NULL);
if (ACPI_FAILURE(status) || !ec->handle) {
- ret = -ENODEV;
- goto error;
+ acpi_ec_free(ec);
+ return;
}
+
/*
* When the DSDT EC is available, always re-configure boot EC to
* have _REG evaluated. _REG can only be evaluated after the
@@ -1766,10 +1767,8 @@ int __init acpi_ec_dsdt_probe(void)
* handle the events.
*/
ret = acpi_config_boot_ec(ec, ec->handle, false, false);
-error:
if (ret)
acpi_ec_free(ec);
- return ret;
}
/*
@@ -1872,36 +1871,32 @@ static const struct dmi_system_id ec_dmi_table[] __initconst = {
{},
};
-int __init acpi_ec_ecdt_probe(void)
+void __init acpi_ec_ecdt_probe(void)
{
- int ret;
- acpi_status status;
struct acpi_table_ecdt *ecdt_ptr;
struct acpi_ec *ec;
+ acpi_status status;
+ int ret;
- ec = acpi_ec_alloc();
- if (!ec)
- return -ENOMEM;
- /*
- * Generate a boot ec context
- */
+ /* Generate a boot ec context. */
dmi_check_system(ec_dmi_table);
status = acpi_get_table(ACPI_SIG_ECDT, 1,
(struct acpi_table_header **)&ecdt_ptr);
- if (ACPI_FAILURE(status)) {
- ret = -ENODEV;
- goto error;
- }
+ if (ACPI_FAILURE(status))
+ return;
if (!ecdt_ptr->control.address || !ecdt_ptr->data.address) {
/*
* Asus X50GL:
* https://bugzilla.kernel.org/show_bug.cgi?id=11880
*/
- ret = -ENODEV;
- goto error;
+ return;
}
+ ec = acpi_ec_alloc();
+ if (!ec)
+ return;
+
if (EC_FLAGS_CORRECT_ECDT) {
ec->command_addr = ecdt_ptr->data.address;
ec->data_addr = ecdt_ptr->control.address;
@@ -1916,10 +1911,8 @@ int __init acpi_ec_ecdt_probe(void)
* the namespace objects, or handle the events.
*/
ret = acpi_config_boot_ec(ec, ACPI_ROOT_OBJECT, false, true);
-error:
if (ret)
acpi_ec_free(ec);
- return ret;
}
#ifdef CONFIG_PM_SLEEP
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 6a9e1fb8913a..6eaf06db7752 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -192,8 +192,8 @@ extern struct acpi_ec *first_ec;
typedef int (*acpi_ec_query_func) (void *data);
int acpi_ec_init(void);
-int acpi_ec_ecdt_probe(void);
-int acpi_ec_dsdt_probe(void);
+void acpi_ec_ecdt_probe(void);
+void acpi_ec_dsdt_probe(void);
void acpi_ec_block_transactions(void);
void acpi_ec_unblock_transactions(void);
void acpi_ec_mark_gpe_for_wake(void);