fs/hfsplus: move xattr_name allocation in hfsplus_getxattr()
security/trusted/user/osx getxattr did the same
xattr_name initialization. Move that operation in hfsplus_getxattr().
Tested with security/trusted/user getfattr/setfattr
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index d98094a..087f8da 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -560,6 +560,30 @@
return res;
}
+ssize_t hfsplus_getxattr(struct dentry *dentry, const char *name,
+ void *value, size_t size,
+ const char *prefix, size_t prefixlen)
+{
+ int res;
+ char *xattr_name;
+
+ if (!strcmp(name, ""))
+ return -EINVAL;
+
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
+
+ strcpy(xattr_name, prefix);
+ strcpy(xattr_name + prefixlen, name);
+
+ res = __hfsplus_getxattr(dentry->d_inode, xattr_name, value, size);
+ kfree(xattr_name);
+ return res;
+
+}
+
static inline int can_list(const char *xattr_name)
{
if (!xattr_name)
@@ -806,9 +830,6 @@
static int hfsplus_osx_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char *xattr_name;
- int res;
-
if (!strcmp(name, ""))
return -EINVAL;
@@ -818,16 +839,9 @@
*/
if (is_known_namespace(name))
return -EOPNOTSUPP;
- xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN
- + XATTR_MAC_OSX_PREFIX_LEN + 1, GFP_KERNEL);
- if (!xattr_name)
- return -ENOMEM;
- strcpy(xattr_name, XATTR_MAC_OSX_PREFIX);
- strcpy(xattr_name + XATTR_MAC_OSX_PREFIX_LEN, name);
- res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
- kfree(xattr_name);
- return res;
+ return hfsplus_getxattr(dentry, name, buffer, size,
+ XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
}
static int hfsplus_osx_setxattr(struct dentry *dentry, const char *name,