Merge tag 'samsung-soc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk...

[cascardo/linux.git] / drivers / staging / speakup / serialio.c

diff --git a/drivers/staging/speakup/serialio.c b/drivers/staging/speakup/serialio.c
index 3b5835b..a5bbb33 100644 (file)
--- a/drivers/staging/speakup/serialio.c
+++ b/drivers/staging/speakup/serialio.c
@@ -6,6 +6,11 @@
 #include "spk_priv.h"
 #include "serialio.h"
 
+#include <linux/serial_core.h>
+/* WARNING:  Do not change this to <linux/serial.h> without testing that
+ * SERIAL_PORT_DFNS does get defined to the appropriate value. */
+#include <asm/serial.h>
+
 #ifndef SERIAL_PORT_DFNS
 #define SERIAL_PORT_DFNS
 #endif
@@ -23,9 +28,15 @@ const struct old_serial_port *spk_serial_init(int index)
        int baud = 9600, quot = 0;
        unsigned int cval = 0;
        int cflag = CREAD | HUPCL | CLOCAL | B9600 | CS8;
-       const struct old_serial_port *ser = rs_table + index;
+       const struct old_serial_port *ser;
        int err;
 
+       if (index >= ARRAY_SIZE(rs_table)) {
+               pr_info("no port info for ttyS%d\n", index);
+               return NULL;
+       }
+       ser = rs_table + index;
+
        /*      Divisor, bytesize and parity */
        quot = ser->baud_base / baud;
        cval = cflag & (CSIZE | CSTOPB);