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linux-2.6/drivers/isdn/hardware/mISDN
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
..
Kconfig mISDN: Add HFC USB driver 2009-01-09 22:44:30 +01:00
Makefile mISDN: Add HFC USB driver 2009-01-09 22:44:30 +01:00
hfc_multi.h mISDN: Add ISDN sample clock API to mISDN core 2009-01-09 22:44:27 +01:00
hfc_pci.h mISDN: Add different different timer settings for hfc-pci 2009-01-09 22:44:28 +01:00
hfcmulti.c drivers/isdn: introduce missing kfree 2009-02-08 17:00:49 -08:00
hfcpci.c Make parameter debug writable 2009-01-11 17:58:13 +01:00
hfcsusb.c mISDN: Add HFC USB driver 2009-01-09 22:44:30 +01:00
hfcsusb.h mISDN: Add HFC USB driver 2009-01-09 22:44:30 +01:00