staging: comedi: daqboard2000: bug fix board type matching code
authorIan Abbott <abbotti@mev.co.uk>
Wed, 29 Jun 2016 19:27:44 +0000 (20:27 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sun, 21 Aug 2016 15:07:19 +0000 (17:07 +0200)
`daqboard2000_find_boardinfo()` is supposed to check if the
DaqBoard/2000 series model is supported, based on the PCI subvendor and
subdevice ID.  The current code is wrong as it is comparing the PCI
device's subdevice ID to an expected, fixed value for the subvendor ID.
It should be comparing the PCI device's subvendor ID to this fixed
value.  Correct it.

Fixes: 7e8401b23e7f ("staging: comedi: daqboard2000: add back
subsystem_device check")
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/daqboard2000.c

index 65daef0c00d5209c61e2a59d20338ed2afe7c198..0f4eb954aa80fcbef0f7e4f5a9be4a4e46dd03f6 100644 (file)
@@ -634,7 +634,7 @@ static const void *daqboard2000_find_boardinfo(struct comedi_device *dev,
        const struct daq200_boardtype *board;
        int i;
 
-       if (pcidev->subsystem_device != PCI_VENDOR_ID_IOTECH)
+       if (pcidev->subsystem_vendor != PCI_VENDOR_ID_IOTECH)
                return NULL;
 
        for (i = 0; i < ARRAY_SIZE(boardtypes); i++) {