Revert "ACPICA: Namespace: Fix namespace/interpreter lock ordering"
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Sun, 10 Jul 2016 21:34:01 +0000 (23:34 +0200)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Mon, 11 Jul 2016 14:17:37 +0000 (16:17 +0200)
Revert commit 45209046c47b (ACPICA: Namespace: Fix namespace/interpreter
lock ordering) that renders Dell Precision 5510 with the latest (1.2.10)
BIOS applied unable to boot.

Fixes: 45209046c47b (ACPICA: Namespace: Fix namespace/interpreter lock ordering)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=121701
Reported-by: Greg White <gwhite@kupulau.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/acpi/acpica/nsload.c
drivers/acpi/acpica/nsparse.c

index 297f6aacd7d406c4ca107d96878d98d72fde23b3..b5e2b0ada0abb4a7072df63b8a58ccb8cb675287 100644 (file)
@@ -46,7 +46,6 @@
 #include "acnamesp.h"
 #include "acdispat.h"
 #include "actables.h"
-#include "acinterp.h"
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsload")
@@ -79,8 +78,6 @@ acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node)
 
        ACPI_FUNCTION_TRACE(ns_load_table);
 
-       acpi_ex_enter_interpreter();
-
        /*
         * Parse the table and load the namespace with all named
         * objects found within. Control methods are NOT parsed
@@ -92,7 +89,7 @@ acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node)
         */
        status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
        if (ACPI_FAILURE(status)) {
-               goto unlock_interp;
+               return_ACPI_STATUS(status);
        }
 
        /* If table already loaded into namespace, just return */
@@ -133,8 +130,6 @@ acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node)
 
 unlock:
        (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
-unlock_interp:
-       (void)acpi_ex_exit_interpreter();
 
        if (ACPI_FAILURE(status)) {
                return_ACPI_STATUS(status);
index f631a47724f05332644a54e290d9667b4b326010..1783cd7e14467b8f43e9f087884b3b847e6b5492 100644 (file)
@@ -47,6 +47,7 @@
 #include "acparser.h"
 #include "acdispat.h"
 #include "actables.h"
+#include "acinterp.h"
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsparse")
@@ -170,6 +171,8 @@ acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node)
 
        ACPI_FUNCTION_TRACE(ns_parse_table);
 
+       acpi_ex_enter_interpreter();
+
        /*
         * AML Parse, pass 1
         *
@@ -185,7 +188,7 @@ acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node)
        status = acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS1,
                                            table_index, start_node);
        if (ACPI_FAILURE(status)) {
-               return_ACPI_STATUS(status);
+               goto error_exit;
        }
 
        /*
@@ -201,8 +204,10 @@ acpi_ns_parse_table(u32 table_index, struct acpi_namespace_node *start_node)
        status = acpi_ns_one_complete_parse(ACPI_IMODE_LOAD_PASS2,
                                            table_index, start_node);
        if (ACPI_FAILURE(status)) {
-               return_ACPI_STATUS(status);
+               goto error_exit;
        }
 
+error_exit:
+       acpi_ex_exit_interpreter();
        return_ACPI_STATUS(status);
 }