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| author | Bob Moore <robert.moore@intel.com> | 2015-08-25 10:28:26 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-08-25 23:11:30 +0200 |
| commit | 4712f71b609d1805b958c0c355b16a995b11ab6e (patch) | |
| tree | fdc5478b85a78859f593691124051cdf3e338a3b /include/acpi | |
| parent | 40913fe6ea3b733564f0b580cf6c51f5d8fa8158 (diff) | |
| download | lwn-4712f71b609d1805b958c0c355b16a995b11ab6e.tar.gz lwn-4712f71b609d1805b958c0c355b16a995b11ab6e.zip | |
ACPICA: Correctly cleanup after a ACPI table load failure
ACPICA commit ed7769e832de6c7ba90615480d916c85fd100422
If a table load fails, delete all namespace objects created by the
table, otherwise these objects will be uninitialized, causing
problems later. This appears to be a very rare problem.
Also handle the unitialized node problem to prevent possible
faults. ACPICA BZ 1185.
Link: https://github.com/acpica/acpica/commit/ed7769e8
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acexcep.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h index 11c3a011dcbf..9f20eb4acaa6 100644 --- a/include/acpi/acexcep.h +++ b/include/acpi/acexcep.h @@ -192,8 +192,9 @@ struct acpi_exception_info { #define AE_AML_BAD_RESOURCE_LENGTH EXCEP_AML (0x001F) #define AE_AML_ILLEGAL_ADDRESS EXCEP_AML (0x0020) #define AE_AML_INFINITE_LOOP EXCEP_AML (0x0021) +#define AE_AML_UNINITIALIZED_NODE EXCEP_AML (0x0022) -#define AE_CODE_AML_MAX 0x0021 +#define AE_CODE_AML_MAX 0x0022 /* * Internal exceptions used for control @@ -355,7 +356,9 @@ static const struct acpi_exception_info acpi_gbl_exception_names_aml[] = { EXCEP_TXT("AE_AML_ILLEGAL_ADDRESS", "A memory, I/O, or PCI configuration address is invalid"), EXCEP_TXT("AE_AML_INFINITE_LOOP", - "An apparent infinite AML While loop, method was aborted") + "An apparent infinite AML While loop, method was aborted"), + EXCEP_TXT("AE_AML_UNINITIALIZED_NODE", + "A namespace node is uninitialized or unresolved") }; static const struct acpi_exception_info acpi_gbl_exception_names_ctrl[] = { |