kernel/dma_resource: Add an assertion to prevent Init() from being called twice.

2023-05-29 19:44:48 -04:00 · 2023-05-29 19:44:48 -04:00 · 831bb20728
commit 831bb20728
parent 92b8f3e74c
1 changed files with 2 additions and 0 deletions
--- a/src/system/kernel/device_manager/dma_resources.cpp
+++ b/src/system/kernel/device_manager/dma_resources.cpp
@ -93,6 +93,7 @@ DMABuffer::Dump() const

 DMAResource::DMAResource()
 	:
+	fBlockSize(0),
 	fScratchVecs(NULL)
 {
 	mutex_init(&fLock, "dma resource");
@ -159,6 +160,7 @@ DMAResource::Init(const dma_restrictions& restrictions,
 	generic_size_t blockSize, uint32 bufferCount, uint32 bounceBufferCount)
 {
 	ASSERT(restrictions.alignment <= blockSize);
+	ASSERT(fBlockSize == 0);

 	fRestrictions = restrictions;
 	fBlockSize = blockSize == 0 ? 1 : blockSize;