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authorPeter Senna Tschudin <peter.senna@gmail.com>2012-09-12 08:56:03 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-10-06 11:11:42 -0300
commit1a5d2da1134c4d7371db71377815aa3fff9f75cd (patch)
tree35d842ad8fd4b1dc0747f1e89579d710968fe988 /drivers/media
parent3f037426d61027d40063a1fc2d00a08154c7c187 (diff)
downloadlinux-1a5d2da1134c4d7371db71377815aa3fff9f75cd.tar.bz2
[media] drivers/media/dvb-frontends/lg2160.c: Removes useless kfree()
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@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/dvb-frontends/lg2160.c8
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/media/dvb-frontends/lg2160.c b/drivers/media/dvb-frontends/lg2160.c
index cc11260e99df..5fd14f840ab0 100644
--- a/drivers/media/dvb-frontends/lg2160.c
+++ b/drivers/media/dvb-frontends/lg2160.c
@@ -1421,8 +1421,8 @@ struct dvb_frontend *lg2160_attach(const struct lg2160_config *config,
config ? config->i2c_addr : 0);
state = kzalloc(sizeof(struct lg216x_state), GFP_KERNEL);
- if (state == NULL)
- goto fail;
+ if (!state)
+ return NULL;
state->cfg = config;
state->i2c_adap = i2c_adap;
@@ -1449,10 +1449,6 @@ struct dvb_frontend *lg2160_attach(const struct lg2160_config *config,
state->frontend.dtv_property_cache.atscmh_parade_id = 1;
return &state->frontend;
-fail:
- lg_warn("unable to detect LG216x hardware\n");
- kfree(state);
- return NULL;
}
EXPORT_SYMBOL(lg2160_attach);