[PATCH] Check character flags in ppp_async ldisc

[Paul Mackerras]

Although it was checking the per-character error flags supplied by the
driver for ordinary characters, the ppp_async line discipline code
wasn't checking the flags for special characters, such as the flag and
escape characters (~ and }).  This patch adds that check.

Signed-off-by: Paul Mackerras <paulus@xxxxxxxxx>

diff -urN linux-2.5/drivers/net/ppp_async.c pmac-2.5/drivers/net/ppp_async.c
--- linux-2.5/drivers/net/ppp_async.c	2004-10-22 07:00:21.000000000 +1000
+++ pmac-2.5/drivers/net/ppp_async.c	2004-11-06 17:12:05.517208784 +1100
@@ -911,7 +911,9 @@
 			break;
 
 		c = buf[n];
-		if (c == PPP_FLAG) {
+		if (flags != NULL && flags[n] != 0) {
+			ap->state |= SC_TOSS;
+		} else if (c == PPP_FLAG) {
 			process_input_packet(ap);
 		} else if (c == PPP_ESCAPE) {
 			ap->state |= SC_ESCAPE;
-
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