Re: [PATCH] Prevent memory leak in devpts

[Olaf Kirch <okir@suse.de>]

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This is a lame self-followup. Kurt Garloff pointed out that I should
obviously handle the error case more gracefully than by oopsing.
Improved patch attached.

Olaf
-- 
Olaf Kirch     |  The Hardware Gods hate me.
okir@suse.de   |
---------------+ 

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Index: linux-2.6.5/fs/devpts/inode.c
===================================================================
--- linux-2.6.5.orig/fs/devpts/inode.c
+++ linux-2.6.5/fs/devpts/inode.c
@@ -178,9 +178,13 @@ struct tty_struct *devpts_get_tty(int nu
 {
 	struct dentry *dentry = get_node(number);
 	struct tty_struct *tty;
-
-	tty = (IS_ERR(dentry) || !dentry->d_inode) ? NULL :
-			dentry->d_inode->u.generic_ip;
+	
+	tty = NULL;
+	if (!IS_ERR(dentry)) {
+		if (dentry->d_inode)
+			tty = dentry->d_inode->u.generic_ip;
+		dput(dentry);
+	}
 
 	up(&devpts_root->d_inode->i_sem);