[CIFS] Fix unlink oops when indirectly called in rename error path
under heavy stress.
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index e842ce9..ca91ea3 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -569,7 +569,10 @@
xid = GetXid();
- cifs_sb = CIFS_SB(inode->i_sb);
+ if(inode)
+ cifs_sb = CIFS_SB(inode->i_sb);
+ else
+ cifs_sb = CIFS_SB(dentry->d_sb);
pTcon = cifs_sb->tcon;
/* Unlink can be called from rename so we can not grab the sem here