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tty: buffers: Move hidden buffer index advance into outer loop

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The advance of the 'read' buffer index belongs in the outer
flip buffer consume loop, with the other buffer index arithmetic.

No functional change.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley 2015-07-12 20:50:50 -04:00 committed by Greg Kroah-Hartman
parent 069f38b498
commit af5554f957
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/tty_buffer.c
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@ -444,7 +444,6 @@ receive_buf(struct tty_struct *tty, struct tty_buffer *head, int count)
if (count)
disc->ops->receive_buf(tty, p, f, count);
}
head->read += count;
return count;
}
@ -506,6 +505,7 @@ static void flush_to_ldisc(struct work_struct *work)
count = receive_buf(tty, head, count);
if (!count)
break;
head->read += count;
}
mutex_unlock(&buf->lock);