Signed-off-by: Jules Maselbas <[email protected]>
---
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 b32b47867..40fc84599 100644
--- a/drivers/usb/dwc2/host.c
+++ b/drivers/usb/dwc2/host.c
@@ -157,6 +157,11 @@ 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);
--
2.17.1
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