Patchwork [093/106] USB: ti_usb_3410_5052: fix dynamic-id matching

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Submitter Luis Henriques
Date July 30, 2013, 9:31 a.m.
Message ID <1375176725-5825-94-git-send-email-luis.henriques@canonical.com>
Download mbox | patch
Permalink /patch/263350/
State New
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Luis Henriques - July 30, 2013, 9:31 a.m.
3.5.7.18 -stable review patch.  If anyone has any objections, please let me know.

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

From: Johan Hovold <jhovold@gmail.com>

commit 1fad56424f5ad3ce4973505a357212b2e2282b3f upstream.

The driver failed to take the dynamic ids into account when determining
the device type and therefore all devices were detected as 2-port
devices when using the dynamic-id interface.

Match on the usb-serial-driver field instead of doing redundant id-table
searches.

Reported-by: Anders Hammarquist <iko@iko.pp.se>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ luis: backported to 3.5: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/usb/serial/ti_usb_3410_5052.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index a8c03e6..2f02f79 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -380,7 +380,7 @@  static int ti_startup(struct usb_serial *serial)
 	usb_set_serial_data(serial, tdev);
 
 	/* determine device type */
-	if (usb_match_id(serial->interface, ti_id_table_3410))
+	if (serial->type == &ti_1port_device)
 		tdev->td_is_3410 = 1;
 	dbg("%s - device type is %s", __func__,
 				tdev->td_is_3410 ? "3410" : "5052");