Do not malloc(9) while holding a spin lock, to avoid panic. Note it was
submitted upstream and it should be fixed in the next ACPICA release. Discussed with: Moore, Robert (robert dot moore at intel dot com)
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1e7eabd307
commit
afea6800ce
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/vendor-sys/acpica/dist/; revision=237650
@ -298,7 +298,7 @@ AcpiSetupGpeForWake (
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ACPI_STATUS Status;
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ACPI_GPE_EVENT_INFO *GpeEventInfo;
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ACPI_NAMESPACE_NODE *DeviceNode;
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ACPI_GPE_NOTIFY_INFO *Notify;
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ACPI_GPE_NOTIFY_INFO *NewNotify, *Notify;
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ACPI_CPU_FLAGS Flags;
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@ -334,6 +334,12 @@ AcpiSetupGpeForWake (
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return_ACPI_STATUS (AE_BAD_PARAMETER);
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}
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NewNotify = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_NOTIFY_INFO));
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if (!NewNotify)
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{
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return_ACPI_STATUS (AE_NO_MEMORY);
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}
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Flags = AcpiOsAcquireLock (AcpiGbl_GpeLock);
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/* Ensure that we have a valid GPE number */
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@ -384,16 +390,10 @@ AcpiSetupGpeForWake (
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/* Add this device to the notify list for this GPE */
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Notify = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_GPE_NOTIFY_INFO));
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if (!Notify)
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{
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Status = AE_NO_MEMORY;
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goto UnlockAndExit;
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}
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Notify->DeviceNode = DeviceNode;
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Notify->Next = GpeEventInfo->Dispatch.NotifyList;
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GpeEventInfo->Dispatch.NotifyList = Notify;
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NewNotify->DeviceNode = DeviceNode;
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NewNotify->Next = GpeEventInfo->Dispatch.NotifyList;
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GpeEventInfo->Dispatch.NotifyList = NewNotify;
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NewNotify = NULL;
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}
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/* Mark the GPE as a possible wake event */
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@ -403,6 +403,10 @@ AcpiSetupGpeForWake (
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UnlockAndExit:
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AcpiOsReleaseLock (AcpiGbl_GpeLock, Flags);
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if (NewNotify)
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{
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ACPI_FREE (NewNotify);
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}
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return_ACPI_STATUS (Status);
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}
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