Hi all, After merging the tty tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: drivers/tty/serial/8250/8250_bcm2835aux.c: In function 'bcm2835aux_serial_probe': drivers/tty/serial/8250/8250_bcm2835aux.c:154:3: warning: ignoring return value of 'dev_err_probe' declared with attribute 'warn_unused_result' [-Wunused-result] 154 | dev_err_probe(&pdev->dev, ret, "unable to register 8250 port\n"); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Introduced by commit ea43a60b1548 ("serial: 8250: Simplify with dev_err_probe()") -- Cheers, Stephen Rothwell