diff options
| -rw-r--r-- | ArmPkg/Drivers/PL390Gic/PL390GicDxe.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/ArmPkg/Drivers/PL390Gic/PL390GicDxe.c b/ArmPkg/Drivers/PL390Gic/PL390GicDxe.c index 8bf818768e..02853a2f31 100644 --- a/ArmPkg/Drivers/PL390Gic/PL390GicDxe.c +++ b/ArmPkg/Drivers/PL390Gic/PL390GicDxe.c @@ -80,7 +80,7 @@ RegisterInterruptSource ( if (Source > PcdGet32(PcdGicNumInterrupts)) { ASSERT(FALSE); return EFI_UNSUPPORTED; - } + } if ((Handler == NULL) && (gRegisteredInterruptHandlers[Source] == NULL)) { return EFI_INVALID_PARAMETER; @@ -91,7 +91,13 @@ RegisterInterruptSource ( } gRegisteredInterruptHandlers[Source] = Handler; - return This->EnableInterruptSource(This, Source); + + // If the interrupt handler is unregistered then disable the interrupt + if (NULL == Handler){ + return This->DisableInterruptSource (This, Source); + } else { + return This->EnableInterruptSource (This, Source); + } } /** |