Using '\0' instead of plain 0 makes the intent clearer that this is indeed a 
string and not a series of integers.

Signed-off-by: Robert Abel <ra...@robertabel.eu>
---
 drivers/auxdisplay/charlcd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index 324d02f9f1c5..92549c8344a4 100644
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -527,7 +527,7 @@ static void charlcd_write_char(struct charlcd *lcd, char c)
        if ((c != '\n') && priv->esc_seq.len >= 0) {
                /* yes, let's add this char to the buffer */
                priv->esc_seq.buf[priv->esc_seq.len++] = c;
-               priv->esc_seq.buf[priv->esc_seq.len] = 0;
+               priv->esc_seq.buf[priv->esc_seq.len] = '\0';
        } else {
                /* aborts any previous escape sequence */
                priv->esc_seq.len = -1;
@@ -536,7 +536,7 @@ static void charlcd_write_char(struct charlcd *lcd, char c)
                case LCD_ESCAPE_CHAR:
                        /* start of an escape sequence */
                        priv->esc_seq.len = 0;
-                       priv->esc_seq.buf[priv->esc_seq.len] = 0;
+                       priv->esc_seq.buf[priv->esc_seq.len] = '\0';
                        break;
                case '\b':
                        /* go back one char and clear it */
-- 
2.11.0

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