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@xxxxxx>
---
drivers/mmc/host/mxs-mmc.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 4031217d21c3..d82674aed447 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -623,11 +623,11 @@ static int mxs_mmc_probe(struct platform_device *pdev)
goto out_clk_disable;
}
- ssp->dmach = dma_request_slave_channel(&pdev->dev, "rx-tx");
- if (!ssp->dmach) {
+ ssp->dmach = dma_request_chan(&pdev->dev, "rx-tx");
+ if (IS_ERR(ssp->dmach)) {
dev_err(mmc_dev(host->mmc),
"%s: failed to request dma\n", __func__);
- ret = -ENODEV;
+ ret = PTR_ERR(ssp->dmach);
goto out_clk_disable;
}
--
Peter
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
