[Bug 334240] double free in nsslowkey_ConvertToPublicKey if SECITEM_CopyItem or SECITEM_CopyItem fail. r=nelson

security/nss/lib/softoken/lowkey.c

@@ -295,7 +295,6 @@ nsslowkey_ConvertToPublicKey(NSSLOWKEYPrivateKey *privk)
 		if (rv == SECSuccess)
 		    return pubk;
 	    }
-	    nsslowkey_DestroyPublicKey (pubk);
 	} else {
 	    PORT_SetError (SEC_ERROR_NO_MEMORY);
 	}