linux_dsm_epyc7002/drivers/media/dvb
Jiri Slaby 1c488ea9d5 V4L/DVB: DVB: fix dvr node refcounting
In dvb_dvr_release, there is a test dvbdev->users==-1, but users are
never negative. This error results in hung tasks:
  task                        PC stack   pid father
bash          D ffffffffa000c948     0  3264   3170 0x00000000
 ffff88003aec5ce8 0000000000000086 0000000000011f80 0000000000011f80
 ffff88003aec5fd8 ffff88003aec5fd8 ffff88003b848670 0000000000011f80
 ffff88003aec5fd8 0000000000011f80 ffff88003e02a030 ffff88003b848670
Call Trace:
 [<ffffffff813dd4a5>] dvb_dmxdev_release+0xc5/0x130
 [<ffffffff8107b750>] ? autoremove_wake_function+0x0/0x40
 [<ffffffffa00013a2>] dvb_usb_adapter_dvb_exit+0x42/0x70 [dvb_usb]
 [<ffffffffa0000525>] dvb_usb_exit+0x55/0xd0 [dvb_usb]
 [<ffffffffa00005ee>] dvb_usb_device_exit+0x4e/0x70 [dvb_usb]
 [<ffffffffa000a065>] af9015_usb_device_exit+0x55/0x60 [dvb_usb_af9015]
 [<ffffffff813a3f05>] usb_unbind_interface+0x55/0x1a0
 [<ffffffff81316000>] __device_release_driver+0x70/0xe0
...

So check against 1 there instead.

BTW why's the TODO there? Adding TODOs to the code without
descriptions is like adding nothing.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-02 16:43:16 -03:00
..
b2c2 V4L/DVB (12294): b2c2: Use dvb-pll for Cablestar2 2009-09-12 12:17:52 -03:00
bt8xx V4L/DVB: drivers/media: Remove unnecessary casts of private_data 2010-08-02 16:42:53 -03:00
dm1105 V4L/DVB: Bug fix: make IR work again for dm1105 2010-06-01 01:24:20 -03:00
dvb-core V4L/DVB: DVB: fix dvr node refcounting 2010-08-02 16:43:16 -03:00
dvb-usb V4L/DVB: af9015: support for AverMedia AVerTV Volar M (A815Mac) 2010-08-02 16:43:10 -03:00
firewire V4L/DVB: drivers/media: Eliminate a NULL pointer dereference 2010-06-01 01:24:22 -03:00
frontends V4L/DVB: af9013: fix comments 2010-08-02 16:43:14 -03:00
mantis V4L/DVB: mantis: Select correct frontends 2010-08-02 15:28:47 -03:00
ngene V4L/DVB: ngene: remove unused #include <linux/version.h> 2010-06-01 01:23:22 -03:00
pluto2 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pt1 V4L/DVB: pt1: Support Earthsoft PT2 2010-05-19 12:57:32 -03:00
siano V4L/DVB: smscoreapi/w9968cf: drivers/media: Remove unnecesary kmalloc casts 2010-08-02 15:00:41 -03:00
ttpci V4L/DVB: Technotrend S2-3200 ships with a TT 1500 remote 2010-06-01 01:23:18 -03:00
ttusb-budget
ttusb-dec USB: rename usb_buffer_alloc() and usb_buffer_free() users 2010-05-20 13:21:38 -07:00
Kconfig V4L/DVB: ngene: Driver compiles now 2010-02-26 15:10:53 -03:00
Makefile V4L/DVB: ngene: Driver compiles now 2010-02-26 15:10:53 -03:00