Untested, but this looks like a bug to me
-----------
test echo_buf() result for ECHO_OP_START
Signed-off-by: Roel Kluin <roel.kl...@gmail.com>
---
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 7a744b6..42b6cca 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -767,7 +767,7 @@ static size_t __process_echoes(struct tty_struct *tty)
* of echo overrun before the next commit), then discard enough
* data at the tail to prevent a subsequent overrun */
while (ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) {
- if (echo_buf(ldata, tail == ECHO_OP_START)) {
+ if (echo_buf(ldata, tail) == ECHO_OP_START) {
if (echo_buf(ldata, tail) == ECHO_OP_ERASE_TAB)
tail += 3;
else
--
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