mirror of https://gitee.com/openkylin/linux.git
7a0786c19d
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>
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| .. | ||
| Kconfig | ||
| Makefile | ||
| a800.c | ||
| af9005-fe.c | ||
| af9005-remote.c | ||
| af9005-script.h | ||
| af9005.c | ||
| af9005.h | ||
| az6027.c | ||
| az6027.h | ||
| cinergyT2-core.c | ||
| cinergyT2-fe.c | ||
| cinergyT2.h | ||
| cxusb.c | ||
| cxusb.h | ||
| dib07x0.h | ||
| dib0700.h | ||
| dib0700_core.c | ||
| dib0700_devices.c | ||
| dibusb-common.c | ||
| dibusb-mb.c | ||
| dibusb-mc-common.c | ||
| dibusb-mc.c | ||
| dibusb.h | ||
| digitv.c | ||
| digitv.h | ||
| dtt200u-fe.c | ||
| dtt200u.c | ||
| dtt200u.h | ||
| dtv5100.c | ||
| dtv5100.h | ||
| dvb-usb-common.h | ||
| dvb-usb-dvb.c | ||
| dvb-usb-firmware.c | ||
| dvb-usb-i2c.c | ||
| dvb-usb-init.c | ||
| dvb-usb-remote.c | ||
| dvb-usb-urb.c | ||
| dvb-usb.h | ||
| dw2102.c | ||
| dw2102.h | ||
| friio-fe.c | ||
| friio.c | ||
| friio.h | ||
| gp8psk.c | ||
| gp8psk.h | ||
| m920x.c | ||
| m920x.h | ||
| nova-t-usb2.c | ||
| opera1.c | ||
| pctv452e.c | ||
| technisat-usb2.c | ||
| ttusb2.c | ||
| ttusb2.h | ||
| umt-010.c | ||
| usb-urb.c | ||
| vp702x-fe.c | ||
| vp702x.c | ||
| vp702x.h | ||
| vp7045-fe.c | ||
| vp7045.c | ||
| vp7045.h | ||