Commit 3098e514 authored by Daeseok Youn's avatar Daeseok Youn Committed by Greg Kroah-Hartman
Browse files

staging: dgnc: Fix unsigned value for less than zero 



The "un->un_open_count" is unsigned variable, so it cannot
be less than zero.

Signed-off-by: default avatarDaeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5b4af85e

drivers/staging/dgnc/dgnc_tty.c

+3 −3
Original line number Diff line number Diff line
@@ -1636,10 +1636,10 @@ static void dgnc_tty_close(struct tty_struct *tty, struct file *file) 
		un->un_open_count = 1;

	}



	if (--un->un_open_count < 0) {

	if (un->un_open_count)

		un->un_open_count--;

	else

		APR(("bad serial port open count of %d\n", un->un_open_count));

		un->un_open_count = 0;

	}



	ch->ch_open_count--;