热补丁注册时传入非法的obj可能导致kobject引用计数泄露

root@qemu_x86_64:/tmp# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 1
Socket(s): 4
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 6
Model: 6
Model name: QEMU Virtual CPU version 2.5+
Stepping: 3
CPU MHz: 1999.996
BogoMIPS: 3999.99
Virtualization: AMD-V
L1d cache: 64K
L1i cache: 64K
L2 cache: 512K
L3 cache: 16384K
NUMA node0 CPU(s): 0-3
Flags: fpu de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pl

软件信息：
1） OS版本及分支：OLK-5.10
2）内核信息
root@qemu_x86_64:/tmp# uname -a
Linux qemu_x86_64 5.10.0+ #8 SMP PREEMPT Sat Feb 12 14:50:18 CST 2022 x86_64 x86_64 x86_64 GNU/Linux

Hi zhengyejian, welcome to the openEuler Community.
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If you have any questions, please contact the SIG: Kernel, and any of the maintainers: @YangYingliang , @pi3orama , @成坚 (CHENG Jian) , @Qiuuuuu , @zhengzengkai , @Xie XiuQi