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Subject[PATCH 3.12 116/212] tty: incorrect test of echo_buf() result for ECHO_OP_START
Date
3.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Roel Kluin <roel.kluin@gmail.com>

commit c476f6584b0011741b4f0316f1ac4aa3a99403e1 upstream.

test echo_buf() result for ECHO_OP_START

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/tty/n_tty.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -767,7 +767,7 @@ static size_t __process_echoes(struct tt
* 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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