From: Daeseok Youn <daeseok.youn@gmail.com>
To: lidza.louina@gmail.com
Cc: devel@driverdev.osuosl.org, gregkh@linuxfoundation.org,
driverdev-devel@linuxdriverproject.org,
kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] staging: dgnc: remove redundant NULL check in
Date: Wed, 04 May 2016 05:13:04 +0000 [thread overview]
Message-ID: <20160504051304.GA20929@certreview.com> (raw)
tty and ch are already checked for NULL
before calling dgnc_block_til_ready().
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
---
drivers/staging/dgnc/dgnc_tty.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 2cecdb0..d85d005 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -1172,17 +1172,12 @@ static int dgnc_block_til_ready(struct tty_struct *tty,
struct channel_t *ch)
{
int retval = 0;
- struct un_t *un = NULL;
+ struct un_t *un = tty->driver_data;
unsigned long flags;
uint old_flags = 0;
int sleep_on_un_flags = 0;
- if (!tty || tty->magic != TTY_MAGIC || !file || !ch ||
- ch->magic != DGNC_CHANNEL_MAGIC)
- return -ENXIO;
-
- un = tty->driver_data;
- if (!un || un->magic != DGNC_UNIT_MAGIC)
+ if (!file)
return -ENXIO;
spin_lock_irqsave(&ch->ch_lock, flags);
--
2.8.2
WARNING: multiple messages have this Message-ID (diff)
From: Daeseok Youn <daeseok.youn@gmail.com>
To: lidza.louina@gmail.com
Cc: markh@compro.net, gregkh@linuxfoundation.org,
driverdev-devel@linuxdriverproject.org,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [PATCH 1/3] staging: dgnc: remove redundant NULL check in
Date: Wed, 4 May 2016 14:13:04 +0900 [thread overview]
Message-ID: <20160504051304.GA20929@certreview.com> (raw)
tty and ch are already checked for NULL
before calling dgnc_block_til_ready().
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
---
drivers/staging/dgnc/dgnc_tty.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 2cecdb0..d85d005 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -1172,17 +1172,12 @@ static int dgnc_block_til_ready(struct tty_struct *tty,
struct channel_t *ch)
{
int retval = 0;
- struct un_t *un = NULL;
+ struct un_t *un = tty->driver_data;
unsigned long flags;
uint old_flags = 0;
int sleep_on_un_flags = 0;
- if (!tty || tty->magic != TTY_MAGIC || !file || !ch ||
- ch->magic != DGNC_CHANNEL_MAGIC)
- return -ENXIO;
-
- un = tty->driver_data;
- if (!un || un->magic != DGNC_UNIT_MAGIC)
+ if (!file)
return -ENXIO;
spin_lock_irqsave(&ch->ch_lock, flags);
--
2.8.2
next reply other threads:[~2016-05-04 5:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-04 5:13 Daeseok Youn [this message]
2016-05-04 5:13 ` [PATCH 1/3] staging: dgnc: remove redundant NULL check in Daeseok Youn
2016-05-09 12:08 ` Greg KH
2016-05-09 12:08 ` Greg KH
2016-05-10 1:17 ` DaeSeok Youn
2016-05-10 1:17 ` DaeSeok Youn
2016-05-12 11:11 ` [PATCH 1/3] staging: dgnc: remove redundant local variable for Daeseok Youn
2016-05-12 11:11 ` Daeseok Youn
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