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Commit 18419f77 authored by Daeseok Youn's avatar Daeseok Youn Committed by Greg Kroah-Hartman
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staging: dgnc: remove redundant variable null check 



The unit struct(un_t) was not used in dgnc_tty_hangup().

Signed-off-by: default avatarDaeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3ca4b20a

drivers/staging/dgnc/dgnc_tty.c

+0 −6
Original line number Diff line number Diff line
@@ -1289,15 +1289,9 @@ static int dgnc_block_til_ready(struct tty_struct *tty, 
 */

static void dgnc_tty_hangup(struct tty_struct *tty)

{

	struct un_t	*un;



	if (!tty || tty->magic != TTY_MAGIC)

		return;



	un = tty->driver_data;

	if (!un || un->magic != DGNC_UNIT_MAGIC)

		return;



	/* flush the transmit queues */

	dgnc_tty_flush_buffer(tty);

}