diff options
| author | Peter Senna Tschudin <peter.senna@gmail.com> | 2012-09-12 15:56:03 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-06 18:11:42 +0400 |
| commit | 1a5d2da1134c4d7371db71377815aa3fff9f75cd (patch) | |
| tree | 35d842ad8fd4b1dc0747f1e89579d710968fe988 /drivers/media | |
| parent | 3f037426d61027d40063a1fc2d00a08154c7c187 (diff) | |
| download | linux-1a5d2da1134c4d7371db71377815aa3fff9f75cd.tar.xz | |
[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.c | 8 |
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); |