[PATCH] cifs: fix another memleak, in cifs_root_iget

* [PATCH] cifs: fix another memleak, in cifs_root_iget
@ 2010-11-10 21:06 Oskar Schirmer
  2010-11-10 21:59 ` Jesper Juhl
  0 siblings, 1 reply; 3+ messages in thread
From: Oskar Schirmer @ 2010-11-10 21:06 UTC (permalink / raw)
  To: Steve French
  Cc: stable, linux-cifs, linux-kernel, Suresh Jayaraman,
	Andrew Hendry, Oskar Schirmer

cifs_root_iget allocates full_path through
cifs_build_path_to_root, but fails to kfree it upon
cifs_get_inode_info* failure.

Make all failure exit paths traverse clean up
handling at the end of the function.

Signed-off-by: Oskar Schirmer <oskar@scara.com>
Cc: stable@kernel.org
---
 fs/cifs/inode.c |   12 ++++++------
 1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index ef3a55b..ff7d299 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -881,8 +881,10 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
 		rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
 						xid, NULL);
 
-	if (!inode)
-		return ERR_PTR(rc);
+	if (!inode) {
+		inode = ERR_PTR(rc);
+		goto out;
+	}
 
 #ifdef CONFIG_CIFS_FSCACHE
 	/* populate tcon->resource_id */
@@ -898,13 +900,11 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
 		inode->i_uid = cifs_sb->mnt_uid;
 		inode->i_gid = cifs_sb->mnt_gid;
 	} else if (rc) {
-		kfree(full_path);
-		_FreeXid(xid);
 		iget_failed(inode);
-		return ERR_PTR(rc);
+		inode = ERR_PTR(rc);
 	}
 
-
+out:
 	kfree(full_path);
 	/* can not call macro FreeXid here since in a void func
 	 * TODO: This is no longer true
-- 
1.7.0.4


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