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tty: incorrect test of echo_buf() result for ECHO_OP_START 

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>
This commit is contained in:
Roel Kluin 2013-10-11 22:08:49 +02:00 committed by Greg Kroah-Hartman
parent fc811472c2
commit c476f6584b
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/n_tty.c
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@ -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