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tty: Always handle NULL flag ptr

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Most line disciplines already handle the undocumented NULL flag
ptr in their .receive_buf method; however, several don't.

Document the NULL flag ptr, and correct handling in the
N_MOUSE, N_GSM0710 and N_R394 line disciplines.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley
2013-12-02 13:56:03 -05:00
committed by Greg Kroah-Hartman
parent 6c67716d64
commit 82f91fe092
4 changed files with 21 additions and 16 deletions
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2
drivers/tty/n_r3964.c
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@@ -1244,7 +1244,7 @@ static void r3964_receive_buf(struct tty_struct *tty, const unsigned char *cp,
{
struct r3964_info *pInfo = tty->disc_data;
const unsigned char *p;
char *f, flags = 0;
char *f, flags = TTY_NORMAL;
int i;
for (i = count, p = cp, f = fp; i; i--, p++) {