[PATCH v3 9/9] Staging: rts5208: Add missing dma_mapping_error
From: Shaun Ren
Date: Tue Feb 09 2016 - 21:47:33 EST
This patch adds a dma_mapping_error call to debug potential DMA mapping
errors after the dma_map_single call in rtsx_transport.c.
Signed-off-by: Shaun Ren <shaun.ren@xxxxxxxxx>
---
drivers/staging/rts5208/rtsx_transport.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/rts5208/rtsx_transport.c b/drivers/staging/rts5208/rtsx_transport.c
index 46fc8c2..2b38de7 100644
--- a/drivers/staging/rts5208/rtsx_transport.c
+++ b/drivers/staging/rts5208/rtsx_transport.c
@@ -658,7 +658,7 @@ 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)
--
2.7.0