dmaengine: pch: fix compilation for alpha target
commit 4828b493 introduced COMPILE_TEST for this driver and this cause compile
failure on alpha as kzalloc wasnt availble for this arch in included header, so
explictly add slab.h
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
index b4b8cc6..9f9ca9f 100644
--- a/drivers/dma/pch_dma.c
+++ b/drivers/dma/pch_dma.c
@@ -21,6 +21,7 @@
#include <linux/dma-mapping.h>
#include <linux/init.h>
#include <linux/pci.h>
+#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/pch_dma.h>