On Tue, 31 Aug 2010, walter harms wrote: > > > Julia Lawall schrieb: > > Add a call to of_node_put in the error handling code following a call to > > of_find_node_by_path. > > > > The semantic match that finds this problem is as follows: > > (http://coccinelle.lip6.fr/) > > > > // <smpl> > > @r exists@ > > local idexpression x; > > expression E,E1; > > statement S; > > @@ > > > > *x = > > (of_find_node_by_path > > |of_find_node_by_name > > |of_find_node_by_phandle > > |of_get_parent > > |of_get_next_parent > > |of_get_next_child > > |of_find_compatible_node > > |of_match_node > > )(...); > > ... > > if (x == NULL) S > > <... when != x = E > > *if (...) { > > ... when != of_node_put(x) > > when != if (...) { ... of_node_put(x); ... } > > ( > > return <+...x...+>; > > | > > * return ...; > > ) > > } > > ...> > > of_node_put(x); > > // </smpl> > > > > Signed-off-by: Julia Lawall <julia@xxxxxxx> > > > > --- > > drivers/macintosh/via-pmu-led.c | 4 +++- > > 1 file changed, 3 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/macintosh/via-pmu-led.c b/drivers/macintosh/via-pmu-led.c > > index d242976..19c3718 100644 > > --- a/drivers/macintosh/via-pmu-led.c > > +++ b/drivers/macintosh/via-pmu-led.c > > @@ -92,8 +92,10 @@ static int __init via_pmu_led_init(void) > > if (dt == NULL) > > return -ENODEV; > > model = of_get_property(dt, "model", NULL); > > - if (model == NULL) > > + if (model == NULL) { > > + of_node_put(dt); > > return -ENODEV; > > + } > > if (strncmp(model, "PowerBook", strlen("PowerBook")) != 0 && > > strncmp(model, "iBook", strlen("iBook")) != 0 && > > strcmp(model, "PowerMac7,2") != 0 && > > > > is there any rule that says when to use strncmp ? it seems perfecly valid to use strcpy here > (what is done in the last cmp). Perhaps there are some characters after eg PowerBook that one doesn't want to compare with? julia -- 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
