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authorChristoph Hellwig <hch@lst.de>2017-05-21 12:33:39 +0200
committerChristoph Hellwig <hch@lst.de>2017-06-20 11:12:54 +0200
commit54ed812162148ec7819a33b4fe112b8dc9d1cd00 (patch)
treef0a2bee574ff95d2632b9d2cd9fa0e530cad9e69 /drivers/firmware
parent41f1830f5a7af77cf5c86359aba3cbd706687e52 (diff)
firmware/ivc: use dma_mapping_error
DMA_ERROR_CODE is not supposed to be used by drivers. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/firmware')
-rw-r--r--drivers/firmware/tegra/ivc.c4
1 files 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;