1 files changed, 2 insertions, 11 deletions

diff --git a/drivers/dma/hsu/hsu.c b/drivers/dma/hsu/hsu.c
index 683ba9b62795..e649b62431e2 100644
--- a/drivers/dma/hsu/hsu.c
+++ b/drivers/dma/hsu/hsu.c
@@ -58,7 +58,7 @@ static void hsu_dma_chan_start(struct hsu_dma_chan *hsuc)
 {
         struct dma_slave_config *config = &hsuc->config;
         struct hsu_dma_desc *desc = hsuc->desc;
-        u32 bsr, mtsr;
+        u32 bsr = 0, mtsr = 0;  /* to shut the compiler up */
         u32 dcr = HSU_CH_DCR_CHSOE | HSU_CH_DCR_CHEI;
         unsigned int i, count;
 
@@ -68,9 +68,6 @@ static void hsu_dma_chan_start(struct hsu_dma_chan *hsuc)
         } else if (hsuc->direction == DMA_DEV_TO_MEM) {
                 bsr = config->src_maxburst;
                 mtsr = config->src_addr_width;
-        } else {
-                /* Not supported direction */
-                return;
         }
 
         hsu_chan_disable(hsuc);
@@ -243,7 +240,7 @@ static struct dma_async_tx_descriptor *hsu_dma_prep_slave_sg(
 
         desc->nents = sg_len;
         desc->direction = direction;
-        desc->active = 0;
+        /* desc->active = 0 by kzalloc */
         desc->status = DMA_IN_PROGRESS;
 
         return vchan_tx_prep(&hsuc->vchan, &desc->vdesc, flags);
@@ -396,11 +393,6 @@ static int hsu_dma_terminate_all(struct dma_chan *chan)
         return 0;
 }
 
-static int hsu_dma_alloc_chan_resources(struct dma_chan *chan)
-{
-        return 0;
-}
-
 static void hsu_dma_free_chan_resources(struct dma_chan *chan)
 {
         vchan_free_chan_resources(to_virt_chan(chan));
@@ -453,7 +445,6 @@ int hsu_dma_probe(struct hsu_dma_chip *chip)
         dma_cap_set(DMA_SLAVE, hsu->dma.cap_mask);
         dma_cap_set(DMA_PRIVATE, hsu->dma.cap_mask);
 
-        hsu->dma.device_alloc_chan_resources = hsu_dma_alloc_chan_resources;
         hsu->dma.device_free_chan_resources = hsu_dma_free_chan_resources;
 
         hsu->dma.device_prep_slave_sg = hsu_dma_prep_slave_sg;