From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 4 May 2015 12:15:36 +0000 (-0400)
Subject: namei: lift (open-coded) terminate_walk() into callers of get_link()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1bc4b813e8e5bda23a31892712e04905f0c7ffba;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

namei: lift (open-coded) terminate_walk() into callers of get_link()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/namei.c b/fs/namei.c
index d99eaacab2a7..db21e0426193 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -892,7 +892,6 @@ const char *get_link(struct nameidata *nd)
 		mntget(nd->link.mnt);
 
 	if (unlikely(current->total_link_count >= MAXSYMLINKS)) {
-		path_put(&nd->path);
 		path_put(&nd->link);
 		return ERR_PTR(-ELOOP);
 	}
@@ -916,7 +915,6 @@ const char *get_link(struct nameidata *nd)
 		res = inode->i_op->follow_link(dentry, &last->cookie, nd);
 		if (IS_ERR(res)) {
 out:
-			path_put(&nd->path);
 			path_put(&last->link);
 			return res;
 		}
@@ -1827,7 +1825,7 @@ Walked:
 
 			if (unlikely(IS_ERR(s))) {
 				err = PTR_ERR(s);
-				goto Err;
+				break;
 			}
 			err = 0;
 			if (unlikely(!s)) {
@@ -1858,7 +1856,6 @@ Walked:
 		}
 	}
 	terminate_walk(nd);
-Err:
 	while (unlikely(nd->depth))
 		put_link(nd);
 	return err;
@@ -1994,8 +1991,10 @@ static int trailing_symlink(struct nameidata *nd)
 		return error;
 	nd->flags |= LOOKUP_PARENT;
 	s = get_link(nd);
-	if (unlikely(IS_ERR(s)))
+	if (unlikely(IS_ERR(s))) {
+		terminate_walk(nd);
 		return PTR_ERR(s);
+	}
 	if (unlikely(!s))
 		return 0;
 	if (*s == '/') {