ez-x5에서 os timer interrupt를 이용하는 디바이스 드라이버를 만들었습니다.

동작은 되지만 다음과 같은 메세지가 나오는데 뜻을 알고 싶습니다.

enable_irq(21) unbalanced from c489f568 <==이 부분

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[root@ez-x5 nfs]$ insmod gpio_dev.o
Using gpio_dev.o
Warning: loading gpio_dev will taint the kernel: no license Init madule, Succeed. This Device is gpio and Major Number is [253]

See http://www.tux.org/lkml/#export-tainted for information enable_irq(20) unbalanced from c489f514
about tainted modules
enable_irq(21) unbalanced from c489f568
enable_irq(22) unbalanced from c489f5b0