linux_old1/drivers/media/video/hdpvr
Julia Lawall cd0e280f1b V4L/DVB (13413): introduce missing kfree
Error handling code following a kzalloc should free the allocated data.
Similarly for usb-alloc urb.

The semantic match that finds the first 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-05 18:41:45 -02:00
..
Kconfig V4L/DVB (11096): V4L2 Driver for the Hauppauge HD PVR usb capture device 2009-03-30 12:43:28 -03:00
Makefile V4L/DVB (11152): hdpvr: Fix build with Config_I2C not set 2009-03-30 12:43:32 -03:00
hdpvr-control.c V4L/DVB (12472): hdpvr-control: fix bad whitespaces 2009-09-12 12:19:02 -03:00
hdpvr-core.c V4L/DVB (12373): hdpvr: fix lock imbalances 2009-09-12 12:18:30 -03:00
hdpvr-i2c.c V4L/DVB (12343): Stop defining I2C adapter IDs nobody uses 2009-09-12 12:18:13 -03:00
hdpvr-video.c V4L/DVB (13413): introduce missing kfree 2009-12-05 18:41:45 -02:00
hdpvr.h V4L/DVB (11245): hdpvr: add struct v4l2_device 2009-03-30 12:43:43 -03:00