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| author | Julia Lawall <julia@diku.dk> | 2009-11-21 12:50:34 +0100 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2009-11-22 13:03:50 +0100 |
| commit | 78a14e273d93dfbea9673f9b10398c538096302d (patch) | |
| tree | eed6850d3a9903e2cbbb1fda3392eb3e6949cbbf | |
| parent | b285fab4185a9b3db953726f0dd9d343a6e389db (diff) | |
| download | blackbird-op-linux-78a14e273d93dfbea9673f9b10398c538096302d.tar.gz blackbird-op-linux-78a14e273d93dfbea9673f9b10398c538096302d.zip | |
drivers/pcmcia: remove unnecessary kzalloc
The result of calling kzalloc is never used or freed.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
when != if (...) { <+...x...+> }
(
x->f1 = E
|
(x->f1 == NULL || ...)
|
f(...,x->f1,...)
)
...>
(
return \(0\|<+...x...+>\|ptr\);
|
return@p2 ...;
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
| -rw-r--r-- | drivers/pcmcia/sa1111_generic.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c index deb5036ee5fb..de6bc333d299 100644 --- a/drivers/pcmcia/sa1111_generic.c +++ b/drivers/pcmcia/sa1111_generic.c @@ -127,10 +127,6 @@ int sa1111_pcmcia_add(struct sa1111_dev *dev, struct pcmcia_low_level *ops, ops->socket_state = sa1111_pcmcia_socket_state; ops->socket_suspend = sa1111_pcmcia_socket_suspend; - s = kzalloc(sizeof(*s) * ops->nr, GFP_KERNEL); - if (!s) - return -ENODEV; - for (i = 0; i < ops->nr; i++) { s = kzalloc(sizeof(*s), GFP_KERNEL); if (!s) |
