GPL license issue, for device deriver init

shub.sharma007

[ 9867.745855] mycdd: loading out-of-tree module taints kernel.

[ 9867.745861] mycdd: module verification failed: signature and/or required key missing - tainting kernel

[ 9867.746910] myDevInit Begin

[ 9867.746916] myDevInit: Device Registeration Success, register_chrdev Major No : 511

[ 9867.746919] myDevInit End

[ 9936.114359] myDevExit Begin

[ 9936.114374] myDevExit End

[10032.338179] mycdd: module license 'GNU/GPL' taints kernel.

[10032.338191] Disabling lock debugging due to kernel taint

[10032.338193] mycdd: module license taints kernel.

[10032.338882] myDevInit Begin

[10032.338890] myDevInit: Device Registration Success, register_chrdev Major No : 511

I used MODULE_LICENSE("GPL") as well, but still getting this warning

gaurav133232

try using module license (GNU/GPL) or only module license(GNU)