Re: NULL pointer dereference in iio_buffer_register()

2012-07-31 Thread Fengguang Wu
On Tue, Jul 31, 2012 at 03:06:11PM +0200, Lars-Peter Clausen wrote: > On 07/31/2012 02:55 PM, Fengguang Wu wrote: > >>> The panic happens while trying to dereference the NULL indio_dev->buffer: > >>> > >>> 266 int iio_buffer_register(struct iio_dev *indio_dev, > >>> 267

Re: NULL pointer dereference in iio_buffer_register()

2012-07-31 Thread Lars-Peter Clausen
On 07/31/2012 02:55 PM, Fengguang Wu wrote: >>> The panic happens while trying to dereference the NULL indio_dev->buffer: >>> >>> 266 int iio_buffer_register(struct iio_dev *indio_dev, >>> 267 const struct iio_chan_spec *channels, >>> 268

Re: NULL pointer dereference in iio_buffer_register()

2012-07-31 Thread Fengguang Wu
> > The panic happens while trying to dereference the NULL indio_dev->buffer: > > > > 266 int iio_buffer_register(struct iio_dev *indio_dev, > > 267 const struct iio_chan_spec *channels, > > 268 int num_channels) > > 2

Re: NULL pointer dereference in iio_buffer_register()

2012-07-31 Thread Lars-Peter Clausen
On 07/31/2012 12:31 PM, Fengguang Wu wrote: >> [7.623739] BUG: unable to handle kernel NULL pointer dereference at >> 00b0 > > I managed to root cause it: > > [2.108085] BUG: unable to handle kernel NULL pointer dereference > at 0060 > [2.112015] EIP:

NULL pointer dereference in iio_buffer_register()

2012-07-08 Thread Fengguang Wu
Hi Jonathan, I got this boot error when testing kernel in kvm, built with the attached config: [7.618723] kobject: 'tpci200' (8800072f8798): kobject_add_internal: parent: 'drivers', set: 'drivers' [7.620602] kobject: 'tpci200' (8800072f8798): kobject_uevent_env [7.621875] ko