diff options
Diffstat (limited to 'libre/linux-libre-hardened/ACPICA-AML-Parser-ignore-control-method-status-in-module-level-code.patch')
| -rw-r--r-- | libre/linux-libre-hardened/ACPICA-AML-Parser-ignore-control-method-status-in-module-level-code.patch | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/libre/linux-libre-hardened/ACPICA-AML-Parser-ignore-control-method-status-in-module-level-code.patch b/libre/linux-libre-hardened/ACPICA-AML-Parser-ignore-control-method-status-in-module-level-code.patch deleted file mode 100644 index c6929908a..000000000 --- a/libre/linux-libre-hardened/ACPICA-AML-Parser-ignore-control-method-status-in-module-level-code.patch +++ /dev/null @@ -1,53 +0,0 @@ -From f51d7e02375963169fb1c1148ac3f96d54e97ec4 Mon Sep 17 00:00:00 2001 -From: Erik Schmauss <erik.schmauss@intel.com> -Date: Sat, 28 Jul 2018 14:49:55 +0200 -Subject: [PATCH] ACPICA: AML Parser: ignore control method status in - module-level code - -Previous change in the AML parser code blindly set all non-successful -dispatcher statuses to AE_OK. This approach is incorrect because -successful control method invocations from module-level return -AE_CTRL_TRANSFER. Overwriting AE_OK to this status causes the AML -parser to think that there was no return value from the control -method invocation. - -fixes: 73c2a01c52b6 (ACPICA: AML Parser: ignore dispatcher error status during table load) - -Reported-by: Linus Torvalds <torvalds@linux-foundation.org> -Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> ---- - drivers/acpi/acpica/psloop.c | 19 ++++++++++++------- - 1 file changed, 12 insertions(+), 7 deletions(-) - -diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c -index ee840be150b5e..44f35ab3347d1 100644 ---- a/drivers/acpi/acpica/psloop.c -+++ b/drivers/acpi/acpica/psloop.c -@@ -709,15 +709,20 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) - } else - if ((walk_state-> - parse_flags & ACPI_PARSE_MODULE_LEVEL) -+ && status != AE_CTRL_TRANSFER - && ACPI_FAILURE(status)) { - /* -- * ACPI_PARSE_MODULE_LEVEL means that we are loading a table by -- * executing it as a control method. However, if we encounter -- * an error while loading the table, we need to keep trying to -- * load the table rather than aborting the table load. Set the -- * status to AE_OK to proceed with the table load. If we get a -- * failure at this point, it means that the dispatcher got an -- * error while processing Op (most likely an AML operand error. -+ * ACPI_PARSE_MODULE_LEVEL flag means that we are currently -+ * loading a table by executing it as a control method. -+ * However, if we encounter an error while loading the table, -+ * we need to keep trying to load the table rather than -+ * aborting the table load (setting the status to AE_OK -+ * continues the table load). If we get a failure at this -+ * point, it means that the dispatcher got an error while -+ * processing Op (most likely an AML operand error) or a -+ * control method was called from module level and the -+ * dispatcher returned AE_CTRL_TRANSFER. In the latter case, -+ * leave the status alone, there's nothing wrong with it. - */ - status = AE_OK; - } |