linux-kernel - [patch 2/3] btrfs: handle kmalloc() failure

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Message-ID: <20100320112415.GW5331@bicker>
Date:	Sat, 20 Mar 2010 14:24:15 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Chris Mason <chris.mason@...cle.com>
Cc:	Yan Zheng <zheng.yan@...cle.com>, Josef Bacik <josef@...hat.com>,
	Sage Weil <sage@...dream.net>,
	Al Viro <viro@...iv.linux.org.uk>, linux-btrfs@...r.kernel.org,
	linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [patch 2/3] btrfs: handle kmalloc() failure

Return -ENOMEM if kmalloc() fails.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 15f661d..be9b5df 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1212,6 +1212,9 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file,
 		return -EPERM;
 
 	args = kmalloc(sizeof(*args), GFP_KERNEL);
+	if (!args)
+		return -ENOMEM;
+
 	if (copy_from_user(args, argp, sizeof(*args))) {
 		kfree(args);
 		return -EFAULT;
--
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