From: Vincent Stehlé <vincent.stehle@intel.com>
Date: Tue, 10 May 2016 12:56:20 +0000 (+0200)
Subject: Btrfs: fix fspath error deallocation
X-Git-Tag: v4.7-rc1~85^2~1^2~3^2~3
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=72928f2476d08c79f132b4f44a17c9a011dd98e3;p=linux.git

Btrfs: fix fspath error deallocation

Make sure to deallocate fspath with vfree() in case of error in
init_ipath().

fspath is allocated with vmalloc() in init_data_container() since
commit 425d17a290c0 ("Btrfs: use larger limit for translation of logical to
inode").

Signed-off-by: Vincent Stehlé <vincent.stehle@intel.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 80e8472d618b..d3090187fd76 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1991,7 +1991,7 @@ struct inode_fs_paths *init_ipath(s32 total_bytes, struct btrfs_root *fs_root,
 
 	ifp = kmalloc(sizeof(*ifp), GFP_NOFS);
 	if (!ifp) {
-		kfree(fspath);
+		vfree(fspath);
 		return ERR_PTR(-ENOMEM);
 	}