diff --git a/support/platform/src/dmac_core.c b/support/platform/src/dmac_core.c
index c5d529f0bd4317fb1b935ea7e446f85ef4626d3f..1cdccf936260ddb80fd01c6c98bb4576d612b430 100644
--- a/support/platform/src/dmac_core.c
+++ b/support/platform/src/dmac_core.c
@@ -229,6 +229,7 @@ static void DmacFreeChannel(struct DmaCntlr *cntlr, uint16_t channel)
     }
 
     OsalSpinLockIrqSave(&cntlr->lock, &flags);
+    DmacFreeLli(&cntlr->channelList[channel]);
     cntlr->channelList[channel].useStatus = DMAC_CHN_VACANCY;
     OsalSpinUnlockIrqRestore(&cntlr->lock, &flags);
 }