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Fix bug in auxdisplay. 

- charlcd: fix x/y command parsing
     From Mans Rullgard
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Merge tag 'auxdisplay-for-linus-v4.20' of https://github.com/ojeda/linux

Pull auxdisplay fix from Miguel Ojeda:
 "charlcd: fix x/y command parsing (Mans Rullgard)"

* tag 'auxdisplay-for-linus-v4.20' of https://github.com/ojeda/linux:
  auxdisplay: charlcd: fix x/y command parsing
This commit is contained in:
Linus Torvalds 2018-12-22 14:25:23 -08:00
parent 94f82008ce 9bc30ab821
commit 38c0ecf608
1 changed files with 3 additions and 0 deletions
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3
drivers/auxdisplay/charlcd.c
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@ -538,6 +538,9 @@ static inline int handle_lcd_special_code(struct charlcd *lcd)
}
case 'x': /* gotoxy : LxXXX[yYYY]; */
case 'y': /* gotoxy : LyYYY[xXXX]; */
if (priv->esc_seq.buf[priv->esc_seq.len - 1] != ';')
break;
/* If the command is valid, move to the new address */
if (parse_xy(esc, &priv->addr.x, &priv->addr.y))
charlcd_gotoxy(lcd);