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authorAlan Cox <alan@redhat.com>2008-10-13 10:44:57 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-13 09:51:44 -0700
commit51383f69ec56fe3f425d5255fb43e18c445e061c (patch)
treef9d9e280892702c3a47ffa807c0937ea9c80e315 /drivers/char/n_r3964.c
parentea1afd256258f04a290aaa7fd5c2d4deb2e79e26 (diff)
downloadop-kernel-dev-51383f69ec56fe3f425d5255fb43e18c445e061c.zip
op-kernel-dev-51383f69ec56fe3f425d5255fb43e18c445e061c.tar.gz
tty: Remove lots of NULL checks
Many tty drivers contain 'can't happen' checks against NULL pointers passed in by the tty layer. These have never been possible to occur. Even more importantly if they ever do occur we want to know as it would be a serious bug. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/n_r3964.c')
-rw-r--r--drivers/char/n_r3964.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c
index ae377aa4..4a8215a 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/char/n_r3964.c
@@ -372,14 +372,8 @@ static void remove_from_rx_queue(struct r3964_info *pInfo,
static void put_char(struct r3964_info *pInfo, unsigned char ch)
{
struct tty_struct *tty = pInfo->tty;
-
- if (tty == NULL)
- return;
-
/* FIXME: put_char should not be called from an IRQ */
- if (tty->ops->put_char) {
- tty->ops->put_char(tty, ch);
- }
+ tty_put_char(tty, ch);
pInfo->bcc ^= ch;
}
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