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ACPICA: take ACPI_MTX_INTERPRETER in acpi_unload_table_id()

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acpi_tb_delete_namespace_by_owner() expects ACPI_MTX_INTERPRETER to be
taken. This fixes the following issue:

ACPI Error: Mutex [0x0] is not acquired, cannot release (20141107/utmutex-322)
Call Trace:
  [<ffffffff81b0bd28>] dump_stack+0x4f/0x7b
  [<ffffffff81546bfc>] acpi_ut_release_mutex+0x47/0x67
  [<ffffffff81542cf1>] acpi_tb_delete_namespace_by_owner+0x57/0x8d
  [<ffffffff81543ef1>] acpi_unload_table_id+0x3a/0x5e

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Octavian Purdila 2014-12-16 18:12:30 +02:00 committed by Rafael J. Wysocki
parent ec6f34e5b5
commit 97d746578b
1 changed files with 7 additions and 0 deletions
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7
drivers/acpi/acpica/tbxface.c
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@ -281,6 +281,11 @@ acpi_status acpi_unload_table_id(acpi_owner_id id)
ACPI_FUNCTION_TRACE(acpi_unload_table_id);
status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Find table in the global table list */
for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
if (id != acpi_gbl_root_table_list.tables[i].owner_id) {
@ -297,6 +302,8 @@ acpi_status acpi_unload_table_id(acpi_owner_id id)
acpi_tb_set_table_loaded_flag(i, FALSE);
break;
}
(void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
return_ACPI_STATUS(status);
}