Messages in this thread | | | Date | Wed, 20 Jan 1999 15:24:38 +0100 | From | Arnd Bergmann <> | Subject | Re: Oops on bttv 2.2-pre8 |
| |
On Wed, 20 Jan 1999 06:17:01, Bradley Wendelboe wrote > > I have bttv compiled into the kernel: > > bttv0: model: BT848(STB) > Unable to handle Kernel NULL pointer dereference at virtual address > 0000012c > current->tss.cr3 = 00101000, %cr3=0101000 > *pde=00000000 > Oops=0000 > > I'd include stack dump, but I'm not sure how to capture an Oops. >
I found the same Oops and tracked it down. The solution is a missing #include <linux/version.h> in linux/videodev.h and maybe in bttv.h and i2c.h as well.
The Oops is caused when the bttv driver fails to call video_register_device() in init_bt848() and therefore never calls i2c_register_bus(). Then, in release_bttv(), it tries to unregister the btv->i2c, which contains an uninitialized pointer for its devices.
Arnd Bergmann
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |