linux-kernel - [PATCH 09/10] TTY: synclink, remove unneeded tests

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Date:	Thu,  3 Jan 2013 15:53:09 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	gregkh@...uxfoundation.org
Cc:	alan@...ux.intel.com, jirislaby@...il.com,
	linux-kernel@...r.kernel.org
Subject: [PATCH 09/10] TTY: synclink, remove unneeded tests

info in synclink bottom-halves cannot be NULL because it is taken from
work_struct using container_of. Remove the tests.

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/char/pcmcia/synclink_cs.c | 3 ---
 drivers/tty/synclink_gt.c         | 2 --
 drivers/tty/synclinkmp.c          | 3 ---
 3 files changed, 8 deletions(-)

diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index a046b17..a1ef7bb 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -765,9 +765,6 @@ static void bh_handler(struct work_struct *work)
 	struct tty_struct *tty;
 	int action;
 
-	if (!info)
-		return;
-
 	if (debug_level >= DEBUG_LEVEL_BH)
 		printk( "%s(%d):bh_handler(%s) entry\n",
 			__FILE__,__LINE__,info->device_name);
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index 1654b7e..7cb74e8 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -1958,8 +1958,6 @@ static void bh_handler(struct work_struct *work)
 	struct slgt_info *info = container_of(work, struct slgt_info, task);
 	int action;
 
-	if (!info)
-		return;
 	info->bh_running = true;
 
 	while((action = bh_action(info))) {
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index 22d94a1..68bfce0 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -2008,9 +2008,6 @@ static void bh_handler(struct work_struct *work)
 	SLMP_INFO *info = container_of(work, SLMP_INFO, task);
 	int action;
 
-	if (!info)
-		return;
-
 	if ( debug_level >= DEBUG_LEVEL_BH )
 		printk( "%s(%d):%s bh_handler() entry\n",
 			__FILE__,__LINE__,info->device_name);
-- 
1.8.1


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