diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 1f4bc71..cf40e24 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1670,7 +1670,7 @@
 		/* We might be setting the path sep back to a different
 		form if we are reconnecting and the server switched its
 		posix path capability for this share */	
-		if(CIFS_SB(sb)->prepathlen > 0)
+		if(sb && (CIFS_SB(sb)->prepathlen > 0))
 			CIFS_SB(sb)->prepath[0] = CIFS_DIR_SEP(CIFS_SB(sb));
 	
 		cFYI(1,("Negotiate caps 0x%x",(int)cap));