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Commit 3939fcde authored by Li Zefan's avatar Li Zefan Committed by Al Viro
Browse files

xattr: use memdup_user() 



Remove open-coded memdup_user()

Signed-off-by: default avatarLi Zefan <lizf@cn.fujitsu.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 3eac8778

fs/xattr.c

+3 −7
Original line number Diff line number Diff line
@@ -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);