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tty: serial: qcom_geni_serial: Don't try to manually disable the console 

The geni serial driver's shutdown code had a special case to call
console_stop().  Grepping through the code, it was the only serial
driver doing something like this (the only other caller of
console_stop() was in serial_core.c).

As far as I can tell there's no reason to call console_stop() in the
geni code.  ...and a good reason _not_ to call it.  Specifically if
you have an agetty running on the same serial port as the console then
killing the agetty kills your console and if you start the agetty
again the console doesn't come back.

Fixes: c4f528795d ("tty: serial: msm_geni_serial: Add serial driver support for GENI based QUP")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200313134635.2.I3648fac6c98b887742934146ac2729ecb7232eb1@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Douglas Anderson 2020-03-13 13:46:52 -07:00 committed by Greg Kroah-Hartman
parent e83766334f
commit d49e7953f9
1 changed files with 0 additions and 4 deletions
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4
drivers/tty/serial/qcom_geni_serial.c
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@ -825,10 +825,6 @@ static void get_tx_fifo_size(struct qcom_geni_serial_port *port)
static void qcom_geni_serial_shutdown(struct uart_port *uport) static void qcom_geni_serial_shutdown(struct uart_port *uport)
{ {
/* Stop the console before stopping the current tx */
if (uart_console(uport))
console_stop(uport->cons);
disable_irq(uport->irq); disable_irq(uport->irq);
} }