Error Handler

If your program is perfect and never throws an error, then no.

JW

actually i am getting an error that's why i am asking is there any effects if we remove that loop

If i remember correctly, the core goes into an error lockup if it hardfaults in a hardfault handler.

And consequently needs a power cycle to continue.

there is a function for initialization of pwm in other function code is written that if that function !=HAL_OK then error handler in error handler while(1){}. Because of this the system is hanging while doing operations. so i am thinking to remove while(1) so that my problem gets solved