diff --git a/include/spdk/ioat.h b/include/spdk/ioat.h
index cbf1fd6cc..c323a0b46 100644
--- a/include/spdk/ioat.h
+++ b/include/spdk/ioat.h
@@ -104,10 +104,8 @@ int spdk_ioat_probe(void *cb_ctx, spdk_ioat_probe_cb probe_cb, spdk_ioat_attach_
  * Detach specified device returned by spdk_ioat_probe() from the I/OAT driver.
  *
  * \param ioat I/OAT channel to detach from the driver.
- *
- * \return 0 on success.
- */
-int spdk_ioat_detach(struct spdk_ioat_chan *ioat);
+  */
+void spdk_ioat_detach(struct spdk_ioat_chan *ioat);
 
 /**
  * Submit a DMA engine memory copy request.
diff --git a/lib/ioat/ioat.c b/lib/ioat/ioat.c
index ad237a513..ee32ca27f 100644
--- a/lib/ioat/ioat.c
+++ b/lib/ioat/ioat.c
@@ -568,7 +568,7 @@ spdk_ioat_probe(void *cb_ctx, spdk_ioat_probe_cb probe_cb, spdk_ioat_attach_cb a
 	return rc;
 }
 
-int
+void
 spdk_ioat_detach(struct spdk_ioat_chan *ioat)
 {
 	struct ioat_driver	*driver = &g_ioat_driver;
@@ -582,8 +582,6 @@ spdk_ioat_detach(struct spdk_ioat_chan *ioat)
 
 	ioat_channel_destruct(ioat);
 	free(ioat);
-
-	return 0;
 }
 
 #define _2MB_PAGE(ptr)		((ptr) & ~(0x200000 - 1))