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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
parentb285fab4185a9b3db953726f0dd9d343a6e389db (diff)
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.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c
index deb5036..de6bc33 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)