Following an incorrect indentation reported to me by Dan Carpenter, I noticed that the SysRq lines were inherited from the lpuart driver[1] (note how the 'continue' is aligned to 'sport->port.sysrq = 0') and we have never actually tested the SysRq support. 'sport->sysrq = 0' is not necessary neither before nor after 'continue', because sysrq will already be 0 after uart_handle_sysrq_char() will finish. Also, since the LINFlexD driver never called uart_handle_break(), sysrq would have never been set to a nonzero value, so uart_handle_sysrq_char() was not going to do anything. Break conditions are detected based on a null data byte along with a framing error (stop bit sampled to 0). [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/serial/fsl_lpuart.c?h=b3e3bf2ef2c74f5ce5c19510edbbb9bfc1d249c2#n659 Fixes: 09864c1cdf5c ("tty: serial: Add linflexuart driver for S32V234") Signed-off-by: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com> Reported-by: kbuild test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20190918184439.7465-1-stefan-gabriel.mirea@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>