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author | Peter Senna Tschudin <peter.senna@gmail.com> | 2012-09-12 15:56:02 +0400 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-10-06 18:13:07 +0400 |
commit | 47aab4ab20259526419712df4c5d98b914d968dc (patch) | |
tree | fda268eb9f96da41de8e828afd9e93fd24dfcc96 /drivers/media | |
parent | 1a5d2da1134c4d7371db71377815aa3fff9f75cd (diff) | |
download | linux-47aab4ab20259526419712df4c5d98b914d968dc.tar.xz |
[media] drivers/media/dvb-frontends/s5h1432.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/s5h1432.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/media/dvb-frontends/s5h1432.c b/drivers/media/dvb-frontends/s5h1432.c index 8352ce1c9556..6ec16a243741 100644 --- a/drivers/media/dvb-frontends/s5h1432.c +++ b/drivers/media/dvb-frontends/s5h1432.c @@ -351,8 +351,8 @@ struct dvb_frontend *s5h1432_attach(const struct s5h1432_config *config, printk(KERN_INFO " Enter s5h1432_attach(). attach success!\n"); /* allocate memory for the internal state */ state = kmalloc(sizeof(struct s5h1432_state), GFP_KERNEL); - if (state == NULL) - goto error; + if (!state) + return NULL; /* setup the state */ state->config = config; @@ -367,10 +367,6 @@ struct dvb_frontend *s5h1432_attach(const struct s5h1432_config *config, state->frontend.demodulator_priv = state; return &state->frontend; - -error: - kfree(state); - return NULL; } EXPORT_SYMBOL(s5h1432_attach); |