commit: 656d2b3964a9d0f9864d472f8dfa2dd7dd42e6c0
From: Greg Kroah-Hartman <[email protected]>
Date: Tue, 28 Feb 2012 09:20:09 -0800
Subject: USB: ftdi_sio: fix problem when the manufacture is a NULL string

On some misconfigured ftdi_sio devices, if the manufacturer string is
NULL, the kernel will oops when the device is plugged in.  This patch
fixes the problem.

Reported-by: Wojciech M Zabolotny <[email protected]>
Tested-by: Wojciech M Zabolotny <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/usb/serial/ftdi_sio.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index feafa85..9892626 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1769,7 +1769,8 @@ static int ftdi_8u2232c_probe(struct usb_serial *serial)
 
        dbg("%s", __func__);
 
-       if (strcmp(udev->manufacturer, "CALAO Systems") == 0)
+       if ((udev->manufacturer) &&
+           (strcmp(udev->manufacturer, "CALAO Systems") == 0))
                return ftdi_jtag_probe(serial);
 
        return 0;
-- 
1.7.3.4
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to