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authorLi Zefan <lizf@cn.fujitsu.com>2009-04-08 15:06:12 +0800
committerAl Viro <viro@zeniv.linux.org.uk>2009-04-20 23:02:50 -0400
commit3939fcde24473dc09ce16e922c88df9b3bee45d9 (patch)
treefe1525d311cad56f25323a659e6c1811b22c0a8d /fs/xattr.c
parent3eac8778a237d83a1e553eba0c6f4fd4b39eeec0 (diff)
downloadvexpress-lsk-3939fcde24473dc09ce16e922c88df9b3bee45d9.tar.gz
xattr: use memdup_user()
Remove open-coded memdup_user() Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xattr.c')
-rw-r--r--fs/xattr.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/xattr.c b/fs/xattr.c
index 197c4fcac03..d51b8f9db92 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);