diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 3d22eb82289d6560ba0ffc4530230b7a4d6b7773..41a21b322960bfb673196c067e8e9367412bc535 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -211,7 +211,7 @@ static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val)
 	struct sh_dmae_pdata *pdata = shdev->pdata;
 	const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id];
 	u16 __iomem *addr = shdev->dmars;
-	int shift = chan_pdata->dmars_bit;
+	unsigned int shift = chan_pdata->dmars_bit;
 
 	if (dmae_is_busy(sh_chan))
 		return -EBUSY;