linux-kernel - [PATCH 3.16 202/346] staging: comedi: daqboard2000: bug fix board type matching code

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Message-ID: <lsq.1479082460.570605836@decadent.org.uk>
Date:   Mon, 14 Nov 2016 00:14:20 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Ian Abbott" <abbotti@....co.uk>
Subject: [PATCH 3.16 202/346] staging: comedi: daqboard2000: bug fix board
 type matching code

3.16.39-rc1 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>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 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
@@ -684,7 +684,7 @@ 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++) {