hostfs: Freeing an ERR_PTR in hostfs_fill_sb_common()
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 13 Jul 2016 10:12:34 +0000 (13:12 +0300)
committerRichard Weinberger <richard@nod.at>
Wed, 3 Aug 2016 22:18:10 +0000 (00:18 +0200)
We can't pass error pointers to kfree() or it causes an oops.

Fixes: 52b209f7b848 ('get rid of hostfs_read_inode()')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
fs/hostfs/hostfs_kern.c

index 5c57654927a6185cb1601bd5c52d5ba4c0475291..90e46cd752fe7568bc13198898bc450a63cc9e36 100644 (file)
@@ -959,10 +959,11 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
 
        if (S_ISLNK(root_inode->i_mode)) {
                char *name = follow_link(host_root_path);
-               if (IS_ERR(name))
+               if (IS_ERR(name)) {
                        err = PTR_ERR(name);
-               else
-                       err = read_name(root_inode, name);
+                       goto out_put;
+               }
+               err = read_name(root_inode, name);
                kfree(name);
                if (err)
                        goto out_put;