1 files changed, 5 insertions, 7 deletions

diff --git a/drivers/rapidio/devices/tsi721_dma.c b/drivers/rapidio/devices/tsi721_dma.c
index 14fc36ac3d85..006ea5a45020 100644
--- a/drivers/rapidio/devices/tsi721_dma.c
+++ b/drivers/rapidio/devices/tsi721_dma.c
@@ -222,7 +222,7 @@ static int tsi721_bdma_ch_free(struct tsi721_bdma_chan *bdma_chan)
         struct tsi721_device *priv = to_tsi721(bdma_chan->dchan.device);
 #endif
 
-        if (bdma_chan->bd_base == NULL)
+        if (!bdma_chan->bd_base)
                 return 0;
 
         /* Check if DMA channel still running */
@@ -346,7 +346,7 @@ tsi721_desc_fill_init(struct tsi721_tx_desc *desc,
 {
         u64 rio_addr;
 
-        if (bd_ptr == NULL)
+        if (!bd_ptr)
                 return -EINVAL;
 
         /* Initialize DMA descriptor */
@@ -370,7 +370,7 @@ tsi721_desc_fill_init(struct tsi721_tx_desc *desc,
 static int
 tsi721_desc_fill_end(struct tsi721_dma_desc *bd_ptr, u32 bcount, bool interrupt)
 {
-        if (bd_ptr == NULL)
+        if (!bd_ptr)
                 return -EINVAL;
 
         /* Update DMA descriptor */
@@ -555,9 +555,7 @@ static void tsi721_advance_work(struct tsi721_bdma_chan *bdma_chan,
          * If there is no data transfer in progress, fetch new descriptor from
          * the pending queue.
         */
-
-        if (desc == NULL && bdma_chan->active_tx == NULL &&
-                                        !list_empty(&bdma_chan->queue)) {
+        if (!desc && !bdma_chan->active_tx && !list_empty(&bdma_chan->queue)) {
                 desc = list_first_entry(&bdma_chan->queue,
                                         struct tsi721_tx_desc, desc_node);
                 list_del_init((&desc->desc_node));
@@ -796,7 +794,7 @@ static void tsi721_free_chan_resources(struct dma_chan *dchan)
 
         tsi_debug(DMA, &dchan->dev->device, "DMAC%d", bdma_chan->id);
 
-        if (bdma_chan->bd_base == NULL)
+        if (!bdma_chan->bd_base)
                 return;
 
         tsi721_bdma_interrupt_enable(bdma_chan, 0);