auxdisplay: img-ascii-lcd: Fix doc comment to silence warnings
Compiling with W=1 with gcc 7.2.0 gives 2 warnings:
drivers/auxdisplay/img-ascii-lcd.c:233: warning: Function parameter or
member 't' not described in 'img_ascii_lcd_scroll'
drivers/auxdisplay/img-ascii-lcd.c:233: warning: Excess function
parameter 'arg' description in 'img_ascii_lcd_scroll'
Cc: Paul Burton <paul.burton@mips.com>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
diff --git a/drivers/auxdisplay/img-ascii-lcd.c b/drivers/auxdisplay/img-ascii-lcd.c
index 9180b9bd..d813302 100644
--- a/drivers/auxdisplay/img-ascii-lcd.c
+++ b/drivers/auxdisplay/img-ascii-lcd.c
@@ -224,7 +224,7 @@
/**
* img_ascii_lcd_scroll() - scroll the display by a character
- * @arg: really a pointer to the private data structure
+ * @t: really a pointer to the private data structure
*
* Scroll the current message along the LCD by one character, rearming the
* timer if required.