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ACPICA: Correctly cleanup after a ACPI table load failure

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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: ed7769e8
Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Lv Zheng <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Bob Moore 2015-08-25 10:28:26 +08:00 • committed by Rafael J. Wysocki
commit 4712f71b60
6 changed files with 59 additions and 12 deletions
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7
include/acpi/acexcep.h
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@ -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[] = {