From 78a14e273d93dfbea9673f9b10398c538096302d Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 21 Nov 2009 12:50:34 +0100 Subject: [PATCH] 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/) // @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) // Signed-off-by: Julia Lawall Signed-off-by: Dominik Brodowski --- drivers/pcmcia/sa1111_generic.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c index deb5036ee5f..de6bc333d29 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)