add dma mapping error and remove parantheses

This patchset fix check for dma mapping error, as well as removes unnecessary parantheses in the same scope.

Haneen Mohammed (2):
Staging: rts5208: fix check for dma mapping error
Staging: rts5208: remove unnecessary parantheses

 drivers/staging/rts5208/rtsx_transport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

1.9.1

use dma_mapping_error() instead of comparing the returned address with zero after dma_map_single().

---
Changes in v2: Make patchset to remove extra parantheses Changes in v3: Add acknowledgement.

 drivers/staging/rts5208/rtsx_transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index f27491e..0c9549b 100644
@@ -653,7 +653,7 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf,
 		return -ENXIO;
 
 	addr = dma_map_single(&(rtsx->pci->dev), buf, len, dma_dir);
-	if (!addr)
+	if (dma_mapping_error(&rtsx->pci->dev, addr))
 		return -ENOMEM;
 
 	if (card == SD_CARD)

1.9.1

This patch removes unnecessary parantheses around rtsx->pci->dev.

---
Changes in v3: Add acknowledgement.

 drivers/staging/rts5208/rtsx_transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 0c9549b..f2eb18e 100644
@@ -652,7 +652,7 @@ static int rtsx_transfer_buf(struct rtsx_chip *chip, u8 card, void *buf,
 	else
 		return -ENXIO;
 
-	addr = dma_map_single(&(rtsx->pci->dev), buf, len, dma_dir);
+	addr = dma_map_single(&rtsx->pci->dev, buf, len, dma_dir);
 	if (dma_mapping_error(&rtsx->pci->dev, addr))
 		return -ENOMEM;
 

1.9.1