Address of local variable buffer is assigned to a non-local variable

[b4yuan]

DAPLink/source/board/microbitv2/nrf52820/pwr_mon_adc.c

Line 76 in 06fa0a9

NRF_SAADC->RESULT.PTR = (uint32_t) buffer;

A stack address is assigned to a non-local variable. Storing the address of a local variable in non-local memory can cause a dangling pointer bug if the address is used after the function returns.