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Subject[PATCH 04/15 RESEND] staging: dgnc: remove redundant variable null check
The unit struct(un_t) was not used in dgnc_tty_hangup().

Signed-off-by: Daeseok Youn <>
RESEND: This patch was not merged for a long time, if there is any reason
why this patch could NOT be merged into staging tree, let me know.
There were no comment for this patch.
I cannot understand why this patch have to wait long time to merge.
And I also sent emails to mailing-lists for reminding this patch...
please let me know, what is the problem to merge this patch into staging tree.

drivers/staging/dgnc/dgnc_tty.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 1387041..b33b07c 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -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)

- un = tty->driver_data;
- if (!un || un->magic != DGNC_UNIT_MAGIC)
- return;
/* flush the transmit queues */
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