On Wed, 7 Oct 2009, Jean-Denis Girard wrote:
> Hi,
>
> I got the following problem with Inside Out Edgeport USB serial adapter
> while rebooting to 2.6.31.2.
> adapter converter detected
> Oct 7 05:48:46 tiare kernel: EXT4-fs (dm-0): internal journal on dm-0:8
> Oct 7 05:48:46 tiare kernel: usb 2-2.1: firmware: requesting
> edgeport/down3.bin
> Oct 7 05:48:46 tiare kernel: BUG: unable to handle kernel NULL pointer
> dereference at 0000000000000080
> Oct 7 05:48:46 tiare kernel: IP: [<ffffffffa01d1aac>]
> edge_release+0x2c/0x80 [io_ti]
This patch should help.
Alan Stern
Index: 2.6.31/drivers/usb/serial/usb-serial.c
===================================================================
--- 2.6.31.orig/drivers/usb/serial/usb-serial.c
+++ 2.6.31/drivers/usb/serial/usb-serial.c
@@ -926,8 +926,10 @@ int usb_serial_probe(struct usb_interfac
__func__, max_endpoints);
for (i = 0; i < max_endpoints; ++i) {
port = kzalloc(sizeof(struct usb_serial_port), GFP_KERNEL);
- if (!port)
+ if (!port) {
+ serial->num_ports = i;
goto probe_error;
+ }
tty_port_init(&port->port);
port->port.ops = &serial_port_ops;
port->serial = serial;
--
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