linux-stable/drivers/isdn
Julia Lawall 23b904f351 drivers/isdn: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,l;
position p1,p2;
expression *ptr != NULL;
@@

(
if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
|
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
)
<... when != x
     when != if (...) { <+...x...+> }
x->f = E
...>
(
 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: David S. Miller <davem@davemloft.net>
2009-02-08 17:00:49 -08:00
..
act2000 fix ! versus & precedence in various places 2008-02-06 10:40:59 -08:00
capi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2009-01-05 18:44:59 -08:00
divert isdn: use non-racy method for proc entries creation 2008-04-29 08:06:22 -07:00
gigaset gigaset: ifdef cleanup 2008-12-26 01:22:03 -08:00
hardware drivers/isdn: introduce missing kfree 2009-02-08 17:00:49 -08:00
hisax tricky one: hisax sections 2008-11-30 10:03:37 -08:00
hysdn hysdn: convert to net_device_ops and other updates 2009-01-07 18:03:43 -08:00
i4l isdn: Fix missing ifdef in isdn_ppp 2009-01-26 12:24:38 -08:00
icn fix ! versus & precedence in various places 2008-02-06 10:40:59 -08:00
isdnloop drivers/isdn: correct use of ! and & 2008-03-04 16:35:16 -08:00
mISDN Fix small typo 2009-01-11 18:36:30 +01:00
pcbit Convert files to UTF-8 and some cleanups 2007-10-19 23:21:04 +02:00
sc drivers/isdn/sc/ioctl.c: add missing kfree 2008-06-12 18:05:41 -07:00
Kconfig Add mISDN driver 2008-07-27 01:46:33 +02:00
Makefile mISDN fix main ISDN Makefile 2008-08-02 16:28:20 +02:00