CIFS: Return directly after a failed build_path_from_dentry() in cifs_do_create()

Return directly after a call of the function "build_path_from_dentry"
failed at the beginning.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/cifs/dir.c

@@ -244,10 +244,8 @@ cifs_do_create(struct inode *inode, struct dentry *direntry, unsigned int xid,
 		*oplock = REQ_OPLOCK;
 
 	full_path = build_path_from_dentry(direntry);
-	if (full_path == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
+	if (!full_path)
+		return -ENOMEM;
 
 	if (tcon->unix_ext && cap_unix(tcon->ses) && !tcon->broken_posix_open &&
 	    (CIFS_UNIX_POSIX_PATH_OPS_CAP &