hvc_dcc: Simplify put_chars()/get_chars() loops
Casting and anding with 0xff is unnecessary in
hvc_dcc_put_chars() since buf is already a char[].
__dcc_get_char() can't return an int less than 0 since it only
returns a char. Simplify the if statement in hvc_dcc_get_chars()
to take this into account.
Cc: Daniel Walker <dwalker@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/tty/hvc/hvc_dcc.c b/drivers/tty/hvc/hvc_dcc.c
index 155ec10..ad23cc8 100644
--- a/drivers/tty/hvc/hvc_dcc.c
+++ b/drivers/tty/hvc/hvc_dcc.c
@@ -89,7 +89,7 @@
while (__dcc_getstatus() & DCC_STATUS_TX)
cpu_relax();
- __dcc_putchar((char)(buf[i] & 0xFF));
+ __dcc_putchar(buf[i]);
}
return count;
@@ -99,15 +99,11 @@
{
int i;
- for (i = 0; i < count; ++i) {
- int c = -1;
-
+ for (i = 0; i < count; ++i)
if (__dcc_getstatus() & DCC_STATUS_RX)
- c = __dcc_getchar();
- if (c < 0)
+ buf[i] = __dcc_getchar();
+ else
break;
- buf[i] = c;
- }
return i;
}