linux/drivers/staging/comedi
Ian Abbott a4965d98b4 staging: comedi: comedi_isadma: Use a non-NULL device for DMA API
The "comedi_isadma" module calls `dma_alloc_coherent()` and
`dma_free_coherent()` with a NULL device pointer which is no longer
allowed.  If the `hw_dev` member of the `struct comedi_device` has been
set to a valid device, that can be used instead.  Unfortunately, all the
current users of the "comedi_isadma" module leave the `hw_dev` member
set to NULL.  In that case, fall back to using the comedi "class" device
pointed to by the `class_dev` member if that is non-NULL.  In that case,
make it "DMA-capable" with a coherent DMA mask set to the ISA bus limit
of 16MB (24 bits).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-27 15:00:35 +02:00
..
drivers staging: comedi: comedi_isadma: Use a non-NULL device for DMA API 2019-04-27 15:00:35 +02:00
kcomedilib staging: add missing SPDX lines to Makefile files 2019-04-03 11:10:15 +02:00
comedi_buf.c staging: comedi: Add lockdep_assert_held() calls for dev->mutex 2019-04-19 14:33:41 +02:00
comedi_compat32.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
comedi_compat32.h Staging: comedi: comedi_compat32.h: fixed missing or malformed SPDX-License-Identifier 2018-06-18 10:55:11 +02:00
comedi_fops.c staging: comedi: Add lockdep_assert_held() calls for dev->mutex 2019-04-19 14:33:41 +02:00
comedi_internal.h
comedi_pci.c
comedi_pci.h Staging: comedi: comedi_pci.h: fixed missing or malformed SPDX-License-Identifier 2018-06-18 10:55:11 +02:00
comedi_pcmcia.c
comedi_pcmcia.h Staging: comedi: comedi_pcmcia.h: fixed missing or malformed SPDX-License-Identifier 2018-06-18 10:55:11 +02:00
comedi_usb.c
comedi_usb.h
comedi.h staging: comedi: clarify/unify macros for NI macro-defined terminals 2018-11-07 13:08:28 +01:00
comedidev.h staging: comedi: ni_mio_common: Fix divide-by-zero for DIO cmdtest 2019-03-18 07:57:58 +01:00
comedilib.h Staging: comedi: comedilib.h: fixed missing or malformed SPDX-License-Identifier 2018-06-18 10:55:11 +02:00
drivers.c staging: comedi: Add lockdep_assert_held() calls for dev->attach_lock 2019-04-19 14:33:41 +02:00
Kconfig staging: comedi: use help instead of ---help--- in Kconfig 2019-04-19 15:01:50 +02:00
Makefile
proc.c
range.c
TODO