mirror of https://gitee.com/openkylin/linux.git
1c488ea9d5
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> |
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| .. | ||
| Makefile | ||
| demux.h | ||
| dmxdev.c | ||
| dmxdev.h | ||
| dvb_ca_en50221.c | ||
| dvb_ca_en50221.h | ||
| dvb_demux.c | ||
| dvb_demux.h | ||
| dvb_filter.c | ||
| dvb_filter.h | ||
| dvb_frontend.c | ||
| dvb_frontend.h | ||
| dvb_math.c | ||
| dvb_math.h | ||
| dvb_net.c | ||
| dvb_net.h | ||
| dvb_ringbuffer.c | ||
| dvb_ringbuffer.h | ||
| dvbdev.c | ||
| dvbdev.h | ||