diff --git a/drivers/base/dmapool.c b/drivers/base/dmapool.c
index 9406259..91970e9 100644
--- a/drivers/base/dmapool.c
+++ b/drivers/base/dmapool.c
@@ -8,6 +8,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/poison.h>
+#include <linux/sched.h>
 
 /*
  * Pool allocator ... wraps the dma_alloc_coherent page allocator, so