Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1393848
| From | Linus Torvalds <torvalds@linux-foundation.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [GIT PULL for v4.6-rc1] media updates |
| Date | 2016-05-04 00:00 +0200 |
| Message-ID | <ruQwi-7ET-9@gated-at.bofh.it> (permalink) |
| References | <rcV1n-1e9-5@gated-at.bofh.it> <ruQcX-7vl-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Tue, May 3, 2016 at 2:38 PM, Stefan Lippers-Hollmann <s.l-h@gmx.de> wrote:
> Hi
> [...]
>> Mauro Carvalho Chehab (95):
> [...]
>> [media] use v4l2_mc_usb_media_device_init() on most USB devices
> [...]
>
> This change, as part of v4.6-rc6-85-g1248ded, breaks two systems, each
> equipped with a TeVii s480 (dvb_usb_dw2102) DVB-S2 card, for me (kernel
> v4.5.3-rc1 is fine):
From the oops it looks like the "->prev" pointer in one of the list
heads in 'mdev' is NULL.
> [ 5.041915] BUG: unable to handle kernel NULL pointer dereference at (null)
> [ 5.041921] IP: [<ffffffffa0017b18>] media_gobj_create+0xb8/0x100 [media]
I can't tell *which* list head it is, but it looks like there's a
missing call to media_device_init() which is what should have
initialized those list heads.
Of course, maybe that list pointer got initialized but then
overwritten by NULL for some other reason.
Linus
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: [GIT PULL for v4.6-rc1] media updates Stefan Lippers-Hollmann <s.l-h@gmx.de> - 2016-05-03 23:40 +0200
Re: [GIT PULL for v4.6-rc1] media updates Linus Torvalds <torvalds@linux-foundation.org> - 2016-05-04 00:00 +0200
Re: [GIT PULL for v4.6-rc1] media updates Stefan Lippers-Hollmann <s.l-h@gmx.de> - 2016-05-04 06:40 +0200
Re: [GIT PULL for v4.6-rc1] media updates Linus Torvalds <torvalds@linux-foundation.org> - 2016-05-04 20:00 +0200
Re: [GIT PULL for v4.6-rc1] media updates Stefan Lippers-Hollmann <s.l-h@gmx.de> - 2016-05-04 21:30 +0200
Re: [GIT PULL for v4.6-rc1] media updates Linus Torvalds <torvalds@linux-foundation.org> - 2016-05-04 23:00 +0200
Re: [GIT PULL for v4.6-rc1] media updates Stefan Lippers-Hollmann <s.l-h@gmx.de> - 2016-05-04 23:50 +0200
Re: [GIT PULL for v4.6-rc1] media updates Mauro Carvalho Chehab <mchehab@osg.samsung.com> - 2016-05-05 00:00 +0200
Re: [GIT PULL for v4.6-rc1] media updates Mauro Carvalho Chehab <mchehab@osg.samsung.com> - 2016-05-05 13:10 +0200
Re: [GIT PULL for v4.6-rc1] media updates Stefan Lippers-Hollmann <s.l-h@gmx.de> - 2016-05-06 02:10 +0200
csiph-web