From: Jules Maselbas <jmaselbas@kalray.eu>
To: Barebox List <barebox@lists.infradead.org>
Cc: Jules Maselbas <jmaselbas@kalray.eu>
Subject: [PATCH v2 4/7] usb: dwc2: host: Handle dma mapping errors
Date: Wed, 22 Jan 2020 16:49:05 +0100 [thread overview]
Message-ID: <20200122154908.22635-5-jmaselbas@kalray.eu> (raw)
In-Reply-To: <20200122154908.22635-1-jmaselbas@kalray.eu>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
---
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
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next prev parent reply other threads:[~2020-01-22 15:49 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-22 15:49 [PATCH v2 0/7] usb: dwc2 host driver Jules Maselbas
2020-01-22 15:49 ` [PATCH v2 1/7] usb: dwc2: Add host controller driver Jules Maselbas
2020-01-24 14:32 ` Sascha Hauer
2020-01-27 17:23 ` Jules Maselbas
2020-01-28 8:01 ` Sascha Hauer
2020-01-22 15:49 ` [PATCH v2 2/7] usb: dwc2: host: Read dr_mode from device tree Jules Maselbas
2020-01-22 15:49 ` [PATCH v2 3/7] usb: dwc2: host: Rework roothub interface Jules Maselbas
2020-01-22 15:49 ` Jules Maselbas [this message]
2020-01-22 15:49 ` [PATCH v2 5/7] usb: dwc2: host: Dynamic fifo size support from Linux Jules Maselbas
2020-01-22 15:49 ` [PATCH v2 6/7] usb: dwc2: host: Fix toggle reset Jules Maselbas
2020-01-22 15:49 ` [PATCH v2 7/7] usb: dwc2: host: Rewrite dwc2_hc_init Jules Maselbas
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