From: Andreas Gruenbacher <agruenba@redhat.com>
Date: Thu, 29 Sep 2016 15:48:30 +0000 (+0200)
Subject: xattr: Remove unnecessary NULL attribute name check
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5d18cbf16cfb0ad65368fe2ead19237305f4b822;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

xattr: Remove unnecessary NULL attribute name check

When NULL is passed to one of the xattr system calls as the attribute
name, copying that name from user space already fails with -EFAULT;
xattr_resolve_name is never called with a NULL attribute name.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/xattr.c b/fs/xattr.c
index c243905835ab..1f72c9217398 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -675,9 +675,6 @@ xattr_resolve_name(const struct xattr_handler **handlers, const char **name)
 {
 	const struct xattr_handler *handler;
 
-	if (!*name)
-		return ERR_PTR(-EINVAL);
-
 	for_each_xattr_handler(handlers, handler) {
 		const char *n;