1 files changed, 16 insertions, 4 deletions

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 4b17f845f5cd..94deebda6da0 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -62,7 +62,7 @@ struct sci_port {
         unsigned int            type;
 
         /* Port IRQs: ERI, RXI, TXI, BRI (optional) */
-        unsigned int            irqs[SCIx_NR_IRQS]; 
+        unsigned int            irqs[SCIx_NR_IRQS];
 
         /* Port pin configuration */
         void                    (*init_pins)(struct uart_port *port,
@@ -351,7 +351,7 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
         } else {
 #ifdef CONFIG_CPU_SUBTYPE_SH7343
                 /* Nothing */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7780)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
                 ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */
 #else
                 ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */
@@ -361,7 +361,9 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
 }
 #endif
 
-#if defined(CONFIG_CPU_SUBTYPE_SH7760) || defined(CONFIG_CPU_SUBTYPE_SH7780)
+#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7785)
 static inline int scif_txroom(struct uart_port *port)
 {
         return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0x7f);
@@ -1368,9 +1370,19 @@ static int __devinit sci_probe(struct platform_device *dev)
         struct plat_sci_port *p = dev->dev.platform_data;
         int i;
 
-        for (i = 0; p && p->flags != 0 && i < SCI_NPORTS; p++, i++) {
+        for (i = 0; p && p->flags != 0; p++, i++) {
                 struct sci_port *sciport = &sci_ports[i];
 
+                /* Sanity check */
+                if (unlikely(i == SCI_NPORTS)) {
+                        dev_notice(&dev->dev, "Attempting to register port "
+                                   "%d when only %d are available.\n",
+                                   i+1, SCI_NPORTS);
+                        dev_notice(&dev->dev, "Consider bumping "
+                                   "CONFIG_SERIAL_SH_SCI_NR_UARTS!\n");
+                        break;
+                }
+
                 sciport->port.mapbase   = p->mapbase;
 
                 /*