5e6dc54 broke the port information in the speakup driver:
SERIAL_PORT_DFNS only gets defined if asm/serial.h is included.
Along the way, make sure that we do have information for the requested
serial port number (index)
Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
--- a/drivers/staging/speakup/serialio.c
+++ b/drivers/staging/speakup/serialio.c
@@ -6,6 +6,9 @@
#include "spk_priv.h"
#include "serialio.h"
+#include <linux/serial_core.h>
+#include <asm/serial.h>
+
#ifndef SERIAL_PORT_DFNS
#define SERIAL_PORT_DFNS
#endif
@@ -26,6 +29,11 @@ const struct old_serial_port *spk_serial
const struct old_serial_port *ser = rs_table + index;
int err;
+ if (index > sizeof(rs_table) / sizeof(*rs_table)) {
+ pr_info("no port info for ttyS%d\n", index);
+ return NULL;
+ }
+
/* Divisor, bytesize and parity */
quot = ser->baud_base / baud;
cval = cflag & (CSIZE | CSTOPB);
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