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| author | Peter Senna Tschudin <peter.senna@gmail.com> | 2012-09-12 15:56:00 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-06 18:13:49 +0400 |
| commit | e4533e65b3a4194c859e79d8cf9659f1cf1705aa (patch) | |
| tree | 7de0dde4f53d6ae221e9a8070fb32239df3bfef5 | |
| parent | 4a0543ee8d17515420d9133c0e733298d1658523 (diff) | |
| download | linux-e4533e65b3a4194c859e79d8cf9659f1cf1705aa.tar.xz | |
[media] drivers/media/dvb-frontends/stb6100.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>
| -rw-r--r-- | drivers/media/dvb-frontends/stb6100.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/media/dvb-frontends/stb6100.c b/drivers/media/dvb-frontends/stb6100.c index 2e93e65d2cdb..45f9523f968f 100644 --- a/drivers/media/dvb-frontends/stb6100.c +++ b/drivers/media/dvb-frontends/stb6100.c @@ -575,8 +575,8 @@ struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe, struct stb6100_state *state = NULL; state = kzalloc(sizeof (struct stb6100_state), GFP_KERNEL); - if (state == NULL) - goto error; + if (!state) + return NULL; state->config = config; state->i2c = i2c; @@ -587,10 +587,6 @@ struct dvb_frontend *stb6100_attach(struct dvb_frontend *fe, printk("%s: Attaching STB6100 \n", __func__); return fe; - -error: - kfree(state); - return NULL; } static int stb6100_release(struct dvb_frontend *fe) |