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

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

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>

authored by

Peter Ujfalusi and committed by

Greg Kroah-Hartman 6 years ago b7962fb4 3709ff5d

+2 -2

1 changed file

expand all

drivers

usb

musb

ux500_dma.c

+2 -2

drivers/usb/musb/ux500_dma.c

··· 310 310 dma_channel->max_len = SZ_16M; 311 311 312 312 ux500_channel->dma_chan = 313 - dma_request_slave_channel(dev, chan_names[ch_num]); 313 + dma_request_chan(dev, chan_names[ch_num]); 314 314 315 - if (!ux500_channel->dma_chan) 315 + if (IS_ERR(ux500_channel->dma_chan)) 316 316 ux500_channel->dma_chan = 317 317 dma_request_channel(mask, 318 318 data ?