Commits
![Peter Hurley](https://secure.gravatar.com/avatar/3fa946eaa996f263e6ebe412165bd544.jpg?s=96&d=mm)
Peter Hurley committed db1b9dfcd62
serial: core: Claim port mutex for set_ldisc() Three UART drivers (8250, atmel & amba-pl010) enable modem status interrupts if the line discipline is changed to N_PPS. However, the uart port flags may only be safely modified while holding the port mutex. Signed-off-by: Peter Hurley <peter@hurleysoftware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>