On Sun, Nov 16, 2014 at 12:48:37PM +0100, SF Markus Elfring wrote: > > An example of a bug introduced is here: > > > > https://lkml.org/lkml/2014/11/3/505 > > It seems that we try to clarify a different interpretation of "bugs", don't we? > You removed the statement from "if (foo) kfree_fsm(foo);" so now it prints a warning. drivers/s390/net/fsm.c 71 void 72 kfree_fsm(fsm_instance *this) 73 { 74 if (this) { 75 if (this->f) { 76 kfree(this->f->jumpmatrix); 77 kfree(this->f); 78 } 79 kfree(this); 80 } else 81 printk(KERN_WARNING 82 "fsm: kfree_fsm called with NULL argument\n"); 83 } > It is an usual software development challenge to decide on the best source code places > where to put input parameter validation (and when it can be omitted), isn't it? No, it's not. You should just try to write the most readable software you can instead of removing if statements because you can. But that's not my point. My point is that these patches are not always welcome so we should not merge them through the trivial tree. regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html