On Friday, September 12, 2014 2:05 AM, Ian Abbott wrote: > "adl_pci9118" allocates more pages of DMA buffer than it uses, may > allocate half a double-buffer it does not use because it's the "wrong" > half that it managed to allocate (unlikely), and relies on virt_to_bus() > to treat generic kernel memory from get_free_pages() as coherent DMA > memory. Correct the issues, using dma_alloc_coherent() to allocate the > DMA buffers. > > 1) staging: comedi: adl_pci9118: don't allocate 2nd DMA buffer on failure > 2) staging: comedi: adl_pci9118: don't overallocate DMA buffer > 3) staging: comedi: adl_pci9118: use dma_alloc_coherent() > > drivers/staging/comedi/Kconfig | 2 +- > drivers/staging/comedi/drivers/adl_pci9118.c | 40 ++++++++++++++-------------- > 2 files changed, 21 insertions(+), 21 deletions(-) Thanks. Know I don't need to look into how to remove the virt_to_bus()... ;-) Reviewed-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx> _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
