My code checkers mention this:

    CPPCHECK
drivers/i2c/busses/i2c-synquacer.c:422: style: Checking if unsigned variable 'timeout' is less than zero.


  CC      drivers/i2c/busses/i2c-synquacer.o
drivers/i2c/busses/i2c-synquacer.c: In function ?synquacer_i2c_probe?:
drivers/i2c/busses/i2c-synquacer.c:678:15: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if (i2c->irq < 0) {
               ^
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