auxdisplay: charlcd: no need to call charlcd_gotoxy() if nothing changes

If the line extends beyond the width to the screen, nothing changes. The
existing code will call charlcd_gotoxy every time for this case.

Signed-off-by: Sean Young <sean@mess.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>

diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index 642afd8..45ec5ce 100644 (file)
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -192,10 +192,11 @@ static void charlcd_print(struct charlcd *lcd, char c)
                        c = lcd->char_conv[(unsigned char)c];
                lcd->ops->write_data(lcd, c);
                priv->addr.x++;
+
+               /* prevents the cursor from wrapping onto the next line */
+               if (priv->addr.x == lcd->bwidth)
+                       charlcd_gotoxy(lcd);
        }
-       /* prevents the cursor from wrapping onto the next line */
-       if (priv->addr.x == lcd->bwidth)
-               charlcd_gotoxy(lcd);
 }
 
 static void charlcd_clear_fast(struct charlcd *lcd)