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usb: musb/ux500: Use dma_request_chan() instead dma_request_slave_channel()

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dma_request_slave_channel() is a wrapper on top of dma_request_chan()
eating up the error code.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200115132547.364-19-b-liu@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Ujfalusi 2020-01-15 07:25:40 -06:00 committed by Greg Kroah-Hartman
parent 3709ff5dc3
commit b7962fb45f
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/musb/ux500_dma.c
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@ -310,9 +310,9 @@ static int ux500_dma_controller_start(struct ux500_dma_controller *controller)
dma_channel->max_len = SZ_16M;
ux500_channel->dma_chan =
dma_request_slave_channel(dev, chan_names[ch_num]);
dma_request_chan(dev, chan_names[ch_num]);
if (!ux500_channel->dma_chan)
if (IS_ERR(ux500_channel->dma_chan))
ux500_channel->dma_chan =
dma_request_channel(mask,
data ?