From 3939fcde24473dc09ce16e922c88df9b3bee45d9 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 8 Apr 2009 15:06:12 +0800 Subject: xattr: use memdup_user() Remove open-coded memdup_user() Signed-off-by: Li Zefan Signed-off-by: Al Viro --- fs/xattr.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) (limited to 'fs/xattr.c') diff --git a/fs/xattr.c b/fs/xattr.c index 197c4fcac032..d51b8f9db921 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -237,13 +237,9 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, if (size) { if (size > XATTR_SIZE_MAX) return -E2BIG; - kvalue = kmalloc(size, GFP_KERNEL); - if (!kvalue) - return -ENOMEM; - if (copy_from_user(kvalue, value, size)) { - kfree(kvalue); - return -EFAULT; - } + kvalue = memdup_user(value, size); + if (IS_ERR(kvalue)) + return PTR_ERR(kvalue); } error = vfs_setxattr(d, kname, kvalue, size, flags); -- cgit v1.2.3-55-g7522