staging: comedi: me_daq: fix pointer dereference in me_detach()

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As pointed out by Dan Carpenter, dev_private could be NULL when it
is checked before calling comedi_pci_disable(). The private data
variable 'plx_regbase_size' is only used to see if the pci device
has been enabled.

Remove that variable from the private data and just use the unused
dev->iobase variable to let the detach know that the pci device
is enabled.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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H Hartley Sweeten 2012-10-25 15:05:46 -07:00 • committed by Greg Kroah-Hartman

parent 0014048e09

commit 736b605c89

1 changed files with 4 additions and 7 deletions

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drivers/staging/comedi/drivers/me_daq.c

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