linux/drivers/media
Mauro Carvalho Chehab 7a0786c19d gp8psk: Fix DVB frontend attach
The DVB binding schema at the DVB core assumes that the frontend is a
separate driver.  Faling to do that causes OOPS when the module is
removed, as it tries to do a symbol_put_addr on an internal symbol,
causing craches like:

    WARNING: CPU: 1 PID: 28102 at kernel/module.c:1108 module_put+0x57/0x70
    Modules linked in: dvb_usb_gp8psk(-) dvb_usb dvb_core nvidia_drm(PO) nvidia_modeset(PO) snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd soundcore nvidia(PO) [last unloaded: rc_core]
    CPU: 1 PID: 28102 Comm: rmmod Tainted: P        WC O 4.8.4-build.1 #1
    Hardware name: MSI MS-7309/MS-7309, BIOS V1.12 02/23/2009
    Call Trace:
       dump_stack+0x44/0x64
       __warn+0xfa/0x120
       module_put+0x57/0x70
       module_put+0x57/0x70
       warn_slowpath_null+0x23/0x30
       module_put+0x57/0x70
       gp8psk_fe_set_frontend+0x460/0x460 [dvb_usb_gp8psk]
       symbol_put_addr+0x27/0x50
       dvb_usb_adapter_frontend_exit+0x3a/0x70 [dvb_usb]

From Derek's tests:
    "Attach bug is fixed, tuning works, module unloads without
     crashing. Everything seems ok!"

Reported-by: Derek <user.vdr@gmail.com>
Tested-by: Derek <user.vdr@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-13 10:02:22 -08:00
..
common [media] v4l2-tpg-core: drop SYCC, use higher precision 601 conversion matrix 2016-08-24 08:36:11 -03:00
dvb-core [media] get rid of a number of problems at the cross references 2016-09-22 10:00:23 -03:00
dvb-frontends gp8psk: Fix DVB frontend attach 2016-11-13 10:02:22 -08:00
firewire [media] dvb: modify core to implement interfaces/entities at MC new gen 2016-01-11 12:18:52 -02:00
i2c rc: print correct variable for z8f0811 2016-11-11 08:45:08 -08:00
mmc [media] siano: register media controller earlier 2015-02-26 09:10:39 -03:00
pci mm: replace get_user_pages_unlocked() write/force parameters with gup_flags 2016-10-18 14:13:37 -07:00
platform mm: replace get_vaddr_frames() write/force parameters with gup_flags 2016-10-19 08:11:24 -07:00
radio [media] constify i2c_algorithm structures 2016-09-19 16:27:02 -03:00
rc media updates for v4.9-rc1 2016-10-11 13:22:22 -07:00
spi [media] gs1662: make checkpatch happy 2016-09-19 14:39:49 -03:00
tuners Merge branch 'akpm' (patches from Andrew) 2016-10-11 17:34:10 -07:00
usb gp8psk: Fix DVB frontend attach 2016-11-13 10:02:22 -08:00
v4l2-core Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
Kconfig [media] media Kconfig: improve the spi integration 2016-09-19 14:37:05 -03:00
Makefile [media] Add GS1662 driver, a video serializer 2016-09-19 14:36:24 -03:00
cec-edid.c [media] cec-edid: check for IEEE identifier 2016-08-22 14:04:51 -03:00
media-device.c [media] media: Add flags to tell whether to take graph mutex for an IOCTL 2016-09-22 10:28:40 -03:00
media-devnode.c [media] media: fix media devnode ioctl/syscall and unregister race 2016-06-15 17:59:28 -03:00
media-entity.c [media] media: Move media_device link_notify operation to an ops structure 2016-09-09 11:20:09 -03:00