Hi, dma_request_slave_channel() is a wrapper on top of dma_request_chan() eating up the error code. With dma_request_chan() drivers can receive the real error code and can support deferred probing against DMA. The series has been compile tested only (allyesconfig). Regards, Peter --- Peter Ujfalusi (9): spi: atmel: Use dma_request_chan() instead dma_request_slave_channel() spi: bcm2835: Release the DMA channel if probe fails after dma_init spi: bcm2835: Use dma_request_chan() instead dma_request_slave_channel() spi: img-spfi: Use dma_request_chan() instead dma_request_slave_channel() spi: mxs: Use dma_request_chan() instead dma_request_slave_channel() spi: sirf: Use dma_request_chan() instead dma_request_slave_channel() spi: spi-fsl-dspi: Use dma_request_chan() instead dma_request_slave_channel() spi: stm32-qspi: Use dma_request_chan() instead dma_request_slave_channel() spi: stm32: Use dma_request_chan() instead dma_request_slave_channel() drivers/spi/spi-atmel.c | 29 ++++++++++---------------- drivers/spi/spi-bcm2835.c | 40 +++++++++++++++++++++++++----------- drivers/spi/spi-fsl-dspi.c | 12 +++++------ drivers/spi/spi-img-spfi.c | 18 ++++++++++++++-- drivers/spi/spi-mxs.c | 6 +++--- drivers/spi/spi-sirf.c | 12 +++++------ drivers/spi/spi-stm32-qspi.c | 30 +++++++++++++++++++++------ drivers/spi/spi-stm32.c | 32 ++++++++++++++++++++--------- 8 files changed, 116 insertions(+), 63 deletions(-) -- Peter Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki