linux-kernel - [PATCH 4.7 131/143] staging: comedi: daqboard2000: bug fix board type matching code

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Message-Id: <20160905164436.160276503@linuxfoundation.org>
Date:   Mon,  5 Sep 2016 18:45:07 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ian Abbott <abbotti@....co.uk>
Subject: [PATCH 4.7 131/143] staging: comedi: daqboard2000: bug fix board type matching code

4.7-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ian Abbott <abbotti@....co.uk>

commit 80e162ee9b31d77d851b10f8c5299132be1e120f upstream.

`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@....co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/comedi/drivers/daqboard2000.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -636,7 +636,7 @@ static const void *daqboard2000_find_boa
 	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++) {