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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2019-12-17 09:33:05 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2019-12-27 18:18:03 +0800
commit8004865c2e7bc9574d5ddfc99fe2a90eca840b17 (patch)
treed4f02ee3000d104fd1ef48714f346b2b6080aec3
parentaa127963f1cab2b93c74c9b128a84610203fb674 (diff)
downloadlinux-8004865c2e7bc9574d5ddfc99fe2a90eca840b17.tar.bz2
crypto: img-hash - Use dma_request_chan instead dma_request_slave_channel
dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. By using dma_request_chan() directly the driver can support deferred probing against DMA. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--drivers/crypto/img-hash.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c
index fe4cc8babe1c..25d5227f74a1 100644
--- a/drivers/crypto/img-hash.c
+++ b/drivers/crypto/img-hash.c
@@ -332,10 +332,10 @@ static int img_hash_dma_init(struct img_hash_dev *hdev)
struct dma_slave_config dma_conf;
int err = -EINVAL;
- hdev->dma_lch = dma_request_slave_channel(hdev->dev, "tx");
- if (!hdev->dma_lch) {
+ hdev->dma_lch = dma_request_chan(hdev->dev, "tx");
+ if (IS_ERR(hdev->dma_lch)) {
dev_err(hdev->dev, "Couldn't acquire a slave DMA channel.\n");
- return -EBUSY;
+ return PTR_ERR(hdev->dma_lch);
}
dma_conf.direction = DMA_MEM_TO_DEV;
dma_conf.dst_addr = hdev->bus_addr;