Maybe I read the kernel OOPS wrong. Was &ep->desc NULL or not?
It's hard to tell from the information in the oops. You'd have to get
an assembly listing of usb_submit_urb() and figure out what source code
statement corresponds to offset 0x75 in the object code.
Why did you originally think the
No, that's not right at all, for a couple of reasons.
First, &ep->desc is the address of a member of a structure. Even if ep
itself were null, &ep->desc would not be NULL unless desc happened to
be the first member of the ep structure (it is now, but there's no
guarantee that it always will be).
On чет, 26 јул 2012 23:32:48 CEST, Greg KH wrote:
On Thu, Jul 26, 2012 at 11:25:44PM +0200, Damjan wrote:
While playing with my custom made i2c-tiny-usb adapter I triggered
this kernel OOPS in usb_submit_urb in the drivers/usb/core/urb.c
file.
From looking at the file, before line 329 it
0f b6 d2 85 d2 89 54 24 04 74
[14428.092010] EIP: [] usb_submit_urb+0x75/0x310 [usbcore] SS:ESP
0068:c3bb5d34
[14428.092010] CR2: 0004
[14428.135104] ---[ end trace 9baf8f9c81bed80d ]---
>From adf870d98e60e4756cd49ed1f11c9c44b7f80477 Mon Sep 17 00:00:00 2001
From: Damjan Georgievski
