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authorBob Moore <robert.moore@intel.com>2008-06-10 06:38:10 +0200
committerAndi Kleen <andi@basil.nowhere.org>2008-07-16 23:27:03 +0200
commitc91d924e3af08d4f98eab6ebf81f2b8ce132448f (patch)
tree8c3f7ca15ab9f8f2451a8cf87c935de2d01fb2ef /drivers/acpi
parentACPICA: Add argument count checking to control method invocation via acpi_eva... (diff)
downloadlinux-c91d924e3af08d4f98eab6ebf81f2b8ce132448f.tar.xz
linux-c91d924e3af08d4f98eab6ebf81f2b8ce132448f.zip
ACPICA: Fix for hang on GPE method invocation
Fixes problem where the new method argument count validation mechanism will enter an infinite loop when a GPE method is dispatched. Problem fixed be removing the obsolete code that passes GPE block information to the notify handler via the control method parameter pointer. 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> Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/dispatcher/dsmethod.c1
-rw-r--r--drivers/acpi/dispatcher/dswstate.c10
-rw-r--r--drivers/acpi/events/evgpe.c4
-rw-r--r--drivers/acpi/events/evregion.c1
-rw-r--r--drivers/acpi/namespace/nsinit.c1
-rw-r--r--drivers/acpi/namespace/nsxfeval.c1
-rw-r--r--drivers/acpi/parser/psxface.c2
-rw-r--r--drivers/acpi/resources/rsutils.c1
-rw-r--r--drivers/acpi/utilities/uteval.c1
9 files changed, 3 insertions, 19 deletions
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 2509809a36cf..4613b9ca5792 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -377,7 +377,6 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
}
info->parameters = &this_walk_state->operands[0];
- info->parameter_type = ACPI_PARAM_ARGS;
status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node,
obj_desc->method.aml_start,
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index 1386ced332ec..bda23ed60645 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -615,14 +615,8 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state,
walk_state->pass_number = pass_number;
if (info) {
- if (info->parameter_type == ACPI_PARAM_GPE) {
- walk_state->gpe_event_info =
- ACPI_CAST_PTR(struct acpi_gpe_event_info,
- info->parameters);
- } else {
- walk_state->params = info->parameters;
- walk_state->caller_return_desc = &info->return_object;
- }
+ walk_state->params = info->parameters;
+ walk_state->caller_return_desc = &info->return_object;
}
status = acpi_ps_init_scope(&walk_state->parser_state, op);
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index e0339d4139a4..ca356e5ae2c3 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -565,10 +565,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
*/
info->prefix_node =
local_gpe_event_info.dispatch.method_node;
- info->parameters =
- ACPI_CAST_PTR(union acpi_operand_object *,
- gpe_event_info);
- info->parameter_type = ACPI_PARAM_GPE;
info->flags = ACPI_IGNORE_RETURN_VALUE;
status = acpi_ns_evaluate(info);
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index 1628f5934752..5ab4c01417df 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -219,7 +219,6 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
info->prefix_node = region_obj2->extra.method_REG;
info->pathname = NULL;
info->parameters = args;
- info->parameter_type = ACPI_PARAM_ARGS;
info->flags = ACPI_IGNORE_RETURN_VALUE;
/*
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
index 6d6d930c8e18..e4c57510d798 100644
--- a/drivers/acpi/namespace/nsinit.c
+++ b/drivers/acpi/namespace/nsinit.c
@@ -542,7 +542,6 @@ acpi_ns_init_one_device(acpi_handle obj_handle,
info->prefix_node = device_node;
info->pathname = METHOD_NAME__INI;
info->parameters = NULL;
- info->parameter_type = ACPI_PARAM_ARGS;
info->flags = ACPI_IGNORE_RETURN_VALUE;
/*
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index a8d549187c84..b4e135eab7c7 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -182,7 +182,6 @@ acpi_evaluate_object(acpi_handle handle,
}
info->pathname = pathname;
- info->parameter_type = ACPI_PARAM_ARGS;
/* Convert and validate the device handle */
diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c
index 52581454c47c..5ee09e1245e3 100644
--- a/drivers/acpi/parser/psxface.c
+++ b/drivers/acpi/parser/psxface.c
@@ -335,7 +335,7 @@ acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action)
{
acpi_native_uint i;
- if ((info->parameter_type == ACPI_PARAM_ARGS) && (info->parameters)) {
+ if (info->parameters) {
/* Update reference count for each parameter */
diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c
index befe2302f41b..90ed83d05375 100644
--- a/drivers/acpi/resources/rsutils.c
+++ b/drivers/acpi/resources/rsutils.c
@@ -679,7 +679,6 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
info->prefix_node = node;
info->pathname = METHOD_NAME__SRS;
info->parameters = args;
- info->parameter_type = ACPI_PARAM_ARGS;
info->flags = ACPI_IGNORE_RETURN_VALUE;
/*
diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c
index 05e61be267d5..7f1f6341242d 100644
--- a/drivers/acpi/utilities/uteval.c
+++ b/drivers/acpi/utilities/uteval.c
@@ -217,7 +217,6 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
info->prefix_node = prefix_node;
info->pathname = path;
- info->parameter_type = ACPI_PARAM_ARGS;
/* Evaluate the object/method */