2012/9/12 Peter Senna Tschudin <peter.senna@xxxxxxxxx>: > From: Peter Senna Tschudin <peter.senna@xxxxxxxxx> > > Remove useless kfree() and clean up code related to the removal. > > The semantic patch that finds this problem is as follows: > (http://coccinelle.lip6.fr/) > > // <smpl> > @r exists@ > position p1,p2; > expression x; > @@ > > if (x@p1 == NULL) { ... kfree@p2(x); ... return ...; } > > @unchanged exists@ > position r.p1,r.p2; > expression e <= r.x,x,e1; > iterator I; > statement S; > @@ > > if (x@p1 == NULL) { ... when != I(x,...) S > when != e = e1 > when != e += e1 > when != e -= e1 > when != ++e > when != --e > when != e++ > when != e-- > when != &e > kfree@p2(x); ... return ...; } > > @ok depends on unchanged exists@ > position any r.p1; > position r.p2; > expression x; > @@ > > ... when != true x@p1 == NULL > kfree@p2(x); > > @depends on !ok && unchanged@ > position r.p2; > expression x; > @@ > > *kfree@p2(x); > // </smpl> > > Signed-off-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx> > > --- > drivers/media/platform/davinci/vpbe.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c > index c4a82a1..1125a87 100644 > --- a/drivers/media/platform/davinci/vpbe.c > +++ b/drivers/media/platform/davinci/vpbe.c > @@ -771,7 +771,6 @@ static int vpbe_initialize(struct device *dev, struct vpbe_device *vpbe_dev) > return 0; > > vpbe_fail_amp_register: > - kfree(vpbe_dev->amp); Now that you removed this kfree, you could remove this label too. Very nice your cleanup :) > vpbe_fail_sd_register: > kfree(vpbe_dev->encoders); > vpbe_fail_v4l2_device: > > -- > 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 -- Att, Marcos Paulo de Souza Acadêmico de Ciencia da Computação - FURB - SC "Uma vida sem desafios é uma vida sem razão" "A life without challenges, is a non reason life" -- 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
