Changing: - if (!frob()) { + if (frob() == 0) { is a totally pointless change. They're both bad, because they're doing success testing instead of failure testing, but probably the second one is slightly worse. This warning seems dumb. I can't imagine it has even a 10% success rate at finding real bugs. Just disable it. Changing the code to propagate error codes, is the right thing of course so long as it doesn't introduce bugs. regards, dan carpenter _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel