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....@linux.com>
---
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 c0fd8c5..00da7ab 100644
--- a/drivers/staging/rts5208/rtsx_transport.c
+++ b/drivers/staging/rts5208/rtsx_transport.c
@@ -664,7 +664,7 @@ 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
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