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ovl: allow zero size xattr

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commit 97daf8b97a upstream.

When ovl_copy_xattr() encountered a zero size xattr no more xattrs were
copied and the function returned success.  This is clearly not the desired
behavior.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Miklos Szeredi
2015-11-10 17:08:41 +01:00
committed by Greg Kroah-Hartman
parent acaf84251f
commit 85a7ed329a
1 changed files with 1 additions and 1 deletions
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2
fs/overlayfs/copy_up.c
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@@ -54,7 +54,7 @@ int ovl_copy_xattr(struct dentry *old, struct dentry *new)
for (name = buf; name < (buf + list_size); name += strlen(name) + 1) { for (name = buf; name < (buf + list_size); name += strlen(name) + 1) {
size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX); size = vfs_getxattr(old, name, value, XATTR_SIZE_MAX);
if (size <= 0) { if (size < 0) {
error = size; error = size;
goto out_free_value; goto out_free_value;
} }