From 506eb99a26e7af8b649faa135f648d1a2f1e4cdc Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Sun, 15 Jul 2007 23:40:14 -0700
Subject: [PATCH] tty_io: Use kzalloc

Also remove needless casts.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/char/tty_io.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index a37e6330db8a..fde69e589ca7 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -2033,11 +2033,9 @@ static int init_dev(struct tty_driver *driver, int idx,
 	}
 
 	if (!*ltp_loc) {
-		ltp = (struct ktermios *) kmalloc(sizeof(struct ktermios),
-						 GFP_KERNEL);
+		ltp = kzalloc(sizeof(struct ktermios), GFP_KERNEL);
 		if (!ltp)
 			goto free_mem_out;
-		memset(ltp, 0, sizeof(struct ktermios));
 	}
 
 	if (driver->type == TTY_DRIVER_TYPE_PTY) {
@@ -2066,11 +2064,9 @@ static int init_dev(struct tty_driver *driver, int idx,
 		}
 
 		if (!*o_ltp_loc) {
-			o_ltp = (struct ktermios *)
-				kmalloc(sizeof(struct ktermios), GFP_KERNEL);
+			o_ltp = kzalloc(sizeof(struct ktermios), GFP_KERNEL);
 			if (!o_ltp)
 				goto free_mem_out;
-			memset(o_ltp, 0, sizeof(struct ktermios));
 		}
 
 		/*
@@ -3755,9 +3751,8 @@ struct tty_driver *alloc_tty_driver(int lines)
 {
 	struct tty_driver *driver;
 
-	driver = kmalloc(sizeof(struct tty_driver), GFP_KERNEL);
+	driver = kzalloc(sizeof(struct tty_driver), GFP_KERNEL);
 	if (driver) {
-		memset(driver, 0, sizeof(struct tty_driver));
 		driver->magic = TTY_DRIVER_MAGIC;
 		driver->num = lines;
 		/* later we'll move allocation of tables here */
-- 
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