serial: sh-sci: Don't set SCLSR bits in the SCxSR error mask
error_mask is the union of all error indicating bits in the SCxSR
register, while overrun_mask may apply to a different register (SCLSR),
depending on the SCI variant.
Hence overrun_mask should only be ORed into error_mask if it applies to
the SCxSR register.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index b636c53..c3e884d 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -2323,7 +2323,8 @@
* Make the error mask inclusive of overrun detection, if
* supported.
*/
- sci_port->error_mask |= sci_port->overrun_mask;
+ if (sci_port->overrun_reg == SCxSR)
+ sci_port->error_mask |= sci_port->overrun_mask;
port->type = p->type;
port->flags = UPF_FIXED_PORT | p->flags;