| Message ID | 20191217073305.20492-1-peter.ujfalusi@ti.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Herbert Xu |
| Headers | show |
| Series | crypto: img-hash - Use dma_request_chan instead dma_request_slave_channel | expand |
On Tue, Dec 17, 2019 at 09:33:05AM +0200, Peter Ujfalusi wrote: > 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> > --- > drivers/crypto/img-hash.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) Patch applied. Thanks.
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;
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> --- drivers/crypto/img-hash.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)