From: Christoph Hellwig <hch@tuxera.com>
Date: Fri, 1 Oct 2010 03:43:54 +0000 (+0200)
Subject: hfsplus: fix error handling in hfsplus_symlink
X-Git-Tag: firefly_0821_release~7613^2~3745^2~17
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f17c89bfcc9cccd405098eac3ec1ebfddf03279e;p=firefly-linux-kernel-4.4.55.git

hfsplus: fix error handling in hfsplus_symlink

We need to free the inode again on a hfsplus_create_cat failure.

Signed-off-by: Christoph Hellwig <hch@tuxera.com>
---

diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 7efcf75ea73a..f8ae468f4ab6 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -364,31 +364,29 @@ static int hfsplus_rmdir(struct inode *dir, struct dentry *dentry)
 static int hfsplus_symlink(struct inode *dir, struct dentry *dentry,
 			   const char *symname)
 {
-	struct super_block *sb;
 	struct inode *inode;
 	int res;
 
-	sb = dir->i_sb;
-	inode = hfsplus_new_inode(sb, S_IFLNK | S_IRWXUGO);
+	inode = hfsplus_new_inode(dir->i_sb, S_IFLNK | S_IRWXUGO);
 	if (!inode)
 		return -ENOSPC;
 
 	res = page_symlink(inode, symname, strlen(symname) + 1);
-	if (res) {
-		inode->i_nlink = 0;
-		hfsplus_delete_inode(inode);
-		iput(inode);
-		return res;
-	}
+	if (res)
+		goto out_err;
 
-	mark_inode_dirty(inode);
 	res = hfsplus_create_cat(inode->i_ino, dir, &dentry->d_name, inode);
+	if (res)
+		goto out_err;
 
-	if (!res) {
-		hfsplus_instantiate(dentry, inode, inode->i_ino);
-		mark_inode_dirty(inode);
-	}
+	hfsplus_instantiate(dentry, inode, inode->i_ino);
+	mark_inode_dirty(inode);
+	return 0;
 
+out_err:
+	inode->i_nlink = 0;
+	hfsplus_delete_inode(inode);
+	iput(inode);
 	return res;
 }