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Ian Abbott 6f123e952c staging: comedi: bug-fix NULL pointer dereference on failed attach

commit 3955dfa821 upstream.

Commit dcd7b8bd63 ("staging: comedi: put
module _after_ detach" by myself) reversed a couple of calls in
`comedi_device_attach()` when recovering from an error returned by the
low-level driver's 'attach' handler.  Unfortunately, that introduced a
NULL pointer dereference bug as `dev->driver` is NULL after the call to
`comedi_device_detach()`.   We still have a pointer to the low-level
comedi driver structure in the `driv` variable, so use that instead.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2013-08-29 09:47:36 -07:00

drivers

staging: comedi: ni_mio_common: only do counter commands for ni_pcimio

2013-05-13 17:38:47 -04:00

kcomedilib

staging: comedi: use EXPORT_SYMBOL_GPL() for all exported symbols

2013-04-12 15:09:59 -07:00

comedi_buf.c

staging: comedi: complain if dma buffer allocation not supported

2013-05-13 17:38:48 -04:00

comedi_compat32.c

staging: comedi: Makefile: conditionally compile multi-file core module