[PATCH v2 4/7] usb: dwc2: host: Handle dma mapping errors

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Signed-off-by: Jules Maselbas <jmaselbas@xxxxxxxxx>
---
 drivers/usb/dwc2/host.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/dwc2/host.c b/drivers/usb/dwc2/host.c
index 61c29910e..09cf04b46 100644
--- a/drivers/usb/dwc2/host.c
+++ b/drivers/usb/dwc2/host.c
@@ -153,6 +153,11 @@ static int transfer_chunk(struct dwc2 *dwc2, u8 hc,
 	dma_addr = dma_map_single(dwc2->dev, buffer, xfer_len,
 				  in ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
 
+	if (dma_mapping_error(dwc2->dev, dma_addr)) {
+		dwc2_err(dwc2, "Failed to map buffer@0x%p for dma\n", buffer);
+		return -EFAULT;
+	}
+
 	dwc2_dbg(dwc2, "chunk: pid=%d xfer_len=%u pkts=%u dma_addr=%llx\n",
 			*pid, xfer_len, num_packets, dma_addr);
 
-- 
2.21.0.196.g041f5ea


_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox



[Index of Archives]     [Linux Embedded]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux