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xattr: Constify ->name member of "struct xattr".

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Since everybody sets kstrdup()ed constant string to "struct xattr"->name but
nobody modifies "struct xattr"->name , we can omit kstrdup() and its failure
checking by constifying ->name member of "struct xattr".

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Joel Becker <jlbec@evilplan.org> [ocfs2]
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Tested-by: Paul Moore <paul@paul-moore.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
This commit is contained in:
Tetsuo Handa 2013-07-25 05:44:02 +09:00 • committed by James Morris
commit 9548906b2b
9 changed files with 21 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

8
security/security.c
View file

@ -348,10 +348,10 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
if (unlikely(IS_PRIVATE(inode)))
return 0;
memset(new_xattrs, 0, sizeof new_xattrs);
if (!initxattrs)
return security_ops->inode_init_security(inode, dir, qstr,
NULL, NULL, NULL);
memset(new_xattrs, 0, sizeof(new_xattrs));
lsm_xattr = new_xattrs;
ret = security_ops->inode_init_security(inode, dir, qstr,
&lsm_xattr->name,
@ -366,16 +366,14 @@ int security_inode_init_security(struct inode *inode, struct inode *dir,
goto out;
ret = initxattrs(inode, new_xattrs, fs_data);
out:
for (xattr = new_xattrs; xattr->name != NULL; xattr++) {
kfree(xattr->name);
for (xattr = new_xattrs; xattr->value != NULL; xattr++)
kfree(xattr->value);
}
return (ret == -EOPNOTSUPP) ? 0 : ret;
}
EXPORT_SYMBOL(security_inode_init_security);
int security_old_inode_init_security(struct inode *inode, struct inode *dir,
const struct qstr *qstr, char **name,
const struct qstr *qstr, const char **name,
void **value, size_t *len)
{
if (unlikely(IS_PRIVATE(inode)))