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From: Jules Maselbas <jmaselbas@kalray.eu>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Barebox List <barebox@lists.infradead.org>,
	Jules Maselbas <jmaselbas@kalray.eu>
Subject: [RFC PATCH 2/7] usb: dwc2: host: Handle dma mapping errors
Date: Tue, 14 Jan 2020 14:21:07 +0100	[thread overview]
Message-ID: <20200114132112.4119-3-jmaselbas@kalray.eu> (raw)
In-Reply-To: <20200114132112.4119-1-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 4137dd3cb..a1f2e3ea1 100644
--- a/drivers/usb/dwc2/host.c
+++ b/drivers/usb/dwc2/host.c
@@ -154,6 +154,11 @@ 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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  parent reply	other threads:[~2020-01-14 13:22 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-20 14:32 [PATCH 00/10] Add Raspberry Pi USB support Sascha Hauer
2019-12-20 14:32 ` [PATCH 01/10] usb: Make timeout unit clear Sascha Hauer
2019-12-20 14:32 ` [PATCH 02/10] of: Add of_bus_n_xxx_cells() Sascha Hauer
2019-12-20 14:32 ` [PATCH 03/10] device: Introduce dma_offset Sascha Hauer
2019-12-20 14:32 ` [PATCH 04/10] of: Read dma_offset from device tree Sascha Hauer
2019-12-20 14:32 ` [PATCH 05/10] usb: Add usbroothubdes.h Sascha Hauer
2019-12-20 14:32 ` [PATCH 06/10] regulator: add function to get regulator by its name Sascha Hauer
2019-12-20 14:32 ` [PATCH 07/10] rpi: Enable USB Power domain during startup Sascha Hauer
2019-12-20 14:32 ` [PATCH 08/10] usb: Forward error code from usb_set_configuration Sascha Hauer
2019-12-20 14:32 ` [PATCH 09/10] usb: Add dwc2 host driver Sascha Hauer
2020-01-14 13:21   ` [RFC PATCH 0/7] usb: " Jules Maselbas
2020-01-14 13:21     ` [RFC PATCH 1/7] usb: dwc2: Add host controller driver Jules Maselbas
2020-01-14 13:21     ` Jules Maselbas [this message]
2020-01-14 13:21     ` [RFC PATCH 3/7] usb: dwc2: Dynamic fifo size support from Linux Jules Maselbas
2020-01-14 13:21     ` [RFC PATCH 4/7] usb: dwc2: Rework roothub interface Jules Maselbas
2020-01-14 13:21     ` [RFC PATCH 5/7] HACK: usb: dwc2: Fix toggle reset Jules Maselbas
2020-01-14 13:21     ` [RFC PATCH 6/7] usb: dwc2: Rewrite dwc2_hc_init Jules Maselbas
2020-01-14 13:21     ` [RFC PATCH 7/7] usb: dwc2: Read dr_mode from device tree Jules Maselbas
2020-01-14 14:27     ` [RFC PATCH 0/7] usb: dwc2 host driver Sascha Hauer
2020-01-14 17:12       ` Jules Maselbas
2020-01-16  6:50         ` Sascha Hauer
2020-01-16 17:25           ` Jules Maselbas
2020-01-21 13:32             ` Michael Grzeschik
2019-12-20 14:32 ` [PATCH 10/10] ARM: rpi_defconfig: Enable networking support Sascha Hauer

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