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>
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@ -767,7 +767,7 @@ static size_t __process_echoes(struct tty_struct *tty)
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* of echo overrun before the next commit), then discard enough
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* data at the tail to prevent a subsequent overrun */
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while (ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) {
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if (echo_buf(ldata, tail == ECHO_OP_START)) {
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if (echo_buf(ldata, tail) == ECHO_OP_START) {
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if (echo_buf(ldata, tail) == ECHO_OP_ERASE_TAB)
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tail += 3;
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else
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