diff options
| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-11-12 15:46:28 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-11-13 19:02:22 +0100 |
| commit | 7a0786c19d65bd4502b4a53aec9ef75e18192a00 (patch) | |
| tree | 4674cd6fdcec0c7e5a77844694fbf30498894bf0 /drivers/media/usb/dvb-usb/Makefile | |
| parent | gp8psk: fix gp8psk_usb_in_op() logic (diff) | |
| download | linux-7a0786c19d65bd4502b4a53aec9ef75e18192a00.tar.xz linux-7a0786c19d65bd4502b4a53aec9ef75e18192a00.zip | |
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>
Diffstat (limited to 'drivers/media/usb/dvb-usb/Makefile')
| -rw-r--r-- | drivers/media/usb/dvb-usb/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/dvb-usb/Makefile b/drivers/media/usb/dvb-usb/Makefile index 2a7b5a963acf..3b3f32b426d1 100644 --- a/drivers/media/usb/dvb-usb/Makefile +++ b/drivers/media/usb/dvb-usb/Makefile @@ -8,7 +8,7 @@ obj-$(CONFIG_DVB_USB_VP7045) += dvb-usb-vp7045.o dvb-usb-vp702x-objs := vp702x.o vp702x-fe.o obj-$(CONFIG_DVB_USB_VP702X) += dvb-usb-vp702x.o -dvb-usb-gp8psk-objs := gp8psk.o gp8psk-fe.o +dvb-usb-gp8psk-objs := gp8psk.o obj-$(CONFIG_DVB_USB_GP8PSK) += dvb-usb-gp8psk.o dvb-usb-dtt200u-objs := dtt200u.o dtt200u-fe.o |