Em Wed, 9 Nov 2016 07:49:43 -0800
VDR User <user.vdr@xxxxxxxxx> escreveu:
> $ gdb /usr/src/linux/vmlinux
> GNU gdb (Debian 7.11.1-2) 7.11.1
> ...
> Reading symbols from /usr/src/linux/vmlinux...done.
> (gdb) l *module_put+0x67
> 0xc10a4b87 is in module_put (kernel/module.c:1108).
> 1103 int ret;
> 1104
> 1105 if (module) {
> 1106 preempt_disable();
> 1107 ret = atomic_dec_if_positive(&module->refcnt);
> 1108 WARN_ON(ret < 0); /* Failed to put refcount */
> 1109 trace_module_put(module, _RET_IP_);
> 1110 preempt_enable();
> 1111 }
> 1112 }
OK, I guess we've made progress. Please try the enclosed patch.
Regards,
Mauro
[media] gp8psk: Fix DVB frontend attach
it should be calling module_get() at attach, as otherwise
module_put() will crash.
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
Thanks,
Mauro
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