Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French:
 "Two fixes for problems pointed out by automated tools.

  Thanks PaX/grsecurity team and Dan Carpenter (and the Smatch tool)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  [CIFS] Update cifs version number
  [SMB3] Do not fall back to SMBWriteX in set_file_size error cases
  [SMB3] Missing null tcon check

3 files changed, 2 insertions, 36 deletions

diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 27aea110e923..c3cc1609025f 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -136,5 +136,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
 extern const struct export_operations cifs_export_ops;
 #endif /* CONFIG_CIFS_NFSD_EXPORT */
 
-#define CIFS_VERSION   "2.07"
+#define CIFS_VERSION   "2.08"
 #endif                          /* _CIFSFS_H */
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index f621b44cb800..6b66dd5d1540 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2034,7 +2034,6 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
         struct tcon_link *tlink = NULL;
         struct cifs_tcon *tcon = NULL;
         struct TCP_Server_Info *server;
-        struct cifs_io_parms io_parms;
 
         /*
          * To avoid spurious oplock breaks from server, in the case of
@@ -2056,18 +2055,6 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
                         rc = -ENOSYS;
                 cifsFileInfo_put(open_file);
                 cifs_dbg(FYI, "SetFSize for attrs rc = %d\n", rc);
-                if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
-                        unsigned int bytes_written;
-
-                        io_parms.netfid = open_file->fid.netfid;
-                        io_parms.pid = open_file->pid;
-                        io_parms.tcon = tcon;
-                        io_parms.offset = 0;
-                        io_parms.length = attrs->ia_size;
-                        rc = CIFSSMBWrite(xid, &io_parms, &bytes_written,
-                                          NULL, NULL, 1);
-                        cifs_dbg(FYI, "Wrt seteof rc %d\n", rc);
-                }
         } else
                 rc = -EINVAL;
 
@@ -2093,28 +2080,7 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
         else
                 rc = -ENOSYS;
         cifs_dbg(FYI, "SetEOF by path (setattrs) rc = %d\n", rc);
-        if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
-                __u16 netfid;
-                int oplock = 0;
 
-                rc = SMBLegacyOpen(xid, tcon, full_path, FILE_OPEN,
-                                   GENERIC_WRITE, CREATE_NOT_DIR, &netfid,
-                                   &oplock, NULL, cifs_sb->local_nls,
-                                   cifs_remap(cifs_sb));
-                if (rc == 0) {
-                        unsigned int bytes_written;
-
-                        io_parms.netfid = netfid;
-                        io_parms.pid = current->tgid;
-                        io_parms.tcon = tcon;
-                        io_parms.offset = 0;
-                        io_parms.length = attrs->ia_size;
-                        rc = CIFSSMBWrite(xid, &io_parms, &bytes_written, NULL,
-                                          NULL,  1);
-                        cifs_dbg(FYI, "wrt seteof rc %d\n", rc);
-                        CIFSSMBClose(xid, tcon, netfid);
-                }
-        }
         if (tlink)
                 cifs_put_tlink(tlink);
 
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index ce83e2edbe0a..597a417ba94d 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -922,7 +922,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
         if (tcon && tcon->bad_network_name)
                 return -ENOENT;
 
-        if ((tcon->seal) &&
+        if ((tcon && tcon->seal) &&
             ((ses->server->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) == 0)) {
                 cifs_dbg(VFS, "encryption requested but no server support");
                 return -EOPNOTSUPP;