diff --git a/kernel/dma/coherent.c b/kernel/dma/coherent.c
index 2a0c4985f38e..d164b3dbcd93 100644
--- a/kernel/dma/coherent.c
+++ b/kernel/dma/coherent.c
@@ -323,8 +323,10 @@ static int rmem_dma_device_init(struct reserved_mem *rmem, struct device *dev)
 static void rmem_dma_device_release(struct reserved_mem *rmem,
 				    struct device *dev)
 {
-	if (dev)
+	if (dev) {
 		dev->dma_mem = NULL;
+		dev->dma_mem = NULL;
+	}
 }
 
 static const struct reserved_mem_ops rmem_dma_ops = {