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author | Ian Abbott | 2015-04-21 14:18:10 +0200 |
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committer | Greg Kroah-Hartman | 2015-04-30 17:15:59 +0200 |
commit | 8fc369ae38ff281d38e9ea11805a5cae862989bc (patch) | |
tree | 3677462a15709e6d62632df9cbf804c890c5c309 /drivers/clk | |
parent | staging: comedi: serial2002: fix Coverity "Explicit null dereference" (diff) | |
download | kernel-qcow2-linux-8fc369ae38ff281d38e9ea11805a5cae862989bc.tar.gz kernel-qcow2-linux-8fc369ae38ff281d38e9ea11805a5cae862989bc.tar.xz kernel-qcow2-linux-8fc369ae38ff281d38e9ea11805a5cae862989bc.zip |
staging: comedi: wrap COMEDI_SRF_FREE_SPRIV usage
The `COMEDI_SRF_FREE_SPRIV` flag in the `runflags` member of `struct
comedi_subdevice` indicates that the memory pointed to by the `private`
member can be automatically freed by the comedi core on subdevice
clean-up (when the low-level comedi device is being "detached"). the
flag doesn't really belong in `runflags`, but it was somewhere
convenient to keep it without having to add a new member to the
structure.
Rather than access the `COMEDI_SRF_FREE_SPRIV` flag directly, use some
new wrapper functions:
* comedi_can_auto_free_spriv(s) - checks whether the subdevice's
`s->private` points to memory that can be freed automatically.
* comedi_set_spriv_auto_free(s) - marks the subdevice as having a
`s->private` that points to memory that can be freed automatically.
Export `comedi_set_spriv_auto_free()` for use by the low-level comedi
driver modules, in particular the "amplc_dio200_common" module.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/clk')
0 files changed, 0 insertions, 0 deletions