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Message-Id: <20170616181059.19206-2-hch@lst.de>
Date: Fri, 16 Jun 2017 20:10:16 +0200
From: Christoph Hellwig <hch@....de>
To: x86@...nel.org, linux-arm-kernel@...ts.infradead.org,
xen-devel@...ts.xenproject.org, linux-c6x-dev@...ux-c6x.org,
linux-hexagon@...r.kernel.org, linux-ia64@...r.kernel.org,
linux-mips@...ux-mips.org, openrisc@...ts.librecores.org,
linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
linux-xtensa@...ux-xtensa.org, dmaengine@...r.kernel.org,
linux-tegra@...r.kernel.org, dri-devel@...ts.freedesktop.org,
linux-samsung-soc@...r.kernel.org,
iommu@...ts.linux-foundation.org, netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 01/44] firmware/ivc: use dma_mapping_error
DMA_ERROR_CODE is not supposed to be used by drivers.
Signed-off-by: Christoph Hellwig <hch@....de>
Acked-by: Thierry Reding <treding@...dia.com>
---
drivers/firmware/tegra/ivc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/firmware/tegra/ivc.c b/drivers/firmware/tegra/ivc.c
index 29ecfd815320..a01461d63f68 100644
--- a/drivers/firmware/tegra/ivc.c
+++ b/drivers/firmware/tegra/ivc.c
@@ -646,12 +646,12 @@ int tegra_ivc_init(struct tegra_ivc *ivc, struct device *peer, void *rx,
if (peer) {
ivc->rx.phys = dma_map_single(peer, rx, queue_size,
DMA_BIDIRECTIONAL);
- if (ivc->rx.phys == DMA_ERROR_CODE)
+ if (dma_mapping_error(peer, ivc->rx.phys))
return -ENOMEM;
ivc->tx.phys = dma_map_single(peer, tx, queue_size,
DMA_BIDIRECTIONAL);
- if (ivc->tx.phys == DMA_ERROR_CODE) {
+ if (dma_mapping_error(peer, ivc->tx.phys)) {
dma_unmap_single(peer, ivc->rx.phys, queue_size,
DMA_BIDIRECTIONAL);
return -ENOMEM;
--
2.11.0
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