From: Julia Lawall <julia@xxxxxxx> The result of calling kzalloc is never used or freed. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- drivers/pcmcia/sa1111_generic.c | 4 ---- 1 files changed, 0 insertions(+), 4 deletions(-) diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c index deb5036..de6bc33 100644 --- a/drivers/pcmcia/sa1111_generic.c +++ b/drivers/pcmcia/sa1111_generic.c @@ -127,10 +127,6 @@ int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops, ops->socket_state = sa1111_pcmcia_socket_state; ops->socket_suspend = sa1111_pcmcia_socket_suspend; - s = kzalloc(sizeof(*s) * ops->nr, GFP_KERNEL); - if (!s) - return -ENODEV; - for (i = 0; i < ops->nr; i++) { s = kzalloc(sizeof(*s), GFP_KERNEL); if (!s) -- 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
