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authorJulia Lawall <julia@diku.dk>2009-11-21 12:50:34 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2009-11-22 13:03:50 +0100
commit78a14e273d93dfbea9673f9b10398c538096302d (patch)
treeeed6850d3a9903e2cbbb1fda3392eb3e6949cbbf /drivers/mtd/maps
parentb285fab4185a9b3db953726f0dd9d343a6e389db (diff)
downloadlinux-78a14e273d93dfbea9673f9b10398c538096302d.tar.gz
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>
Diffstat (limited to 'drivers/mtd/maps')
0 files changed, 0 insertions, 0 deletions