| commit | 4202066c6995200b2755a4501ea90f5d4e163e41 | |
| author | Julia Lawall <julia@diku.dk> | |
| Thu, 27 May 2010 12:36:45 +0000 (27 09:36 -0300) | ||
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | |
| Tue, 1 Jun 2010 04:24:22 +0000 (1 01:24 -0300) | ||
| tree | 4d1dfe0734e9992efae9c42a81f9c5c50cbcbfa0 | treesnapshot (tar.gz zip) |
| parent | 5c331fc8c19e181bffab46e9d18e1637cdc47170 | commitdiff |
V4L/DVB: drivers/media: Eliminate a NULL pointer dereference
In each case, the print involves dereferencing a value that is NULL or is
near NULL.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@
if ((E == NULL && ...) || ...)
{
... when != if (...) S1 else S2
when != E = E1
* E->f
... when any
return ...;
}
else S3
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
In each case, the print involves dereferencing a value that is NULL or is
near NULL.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@r exists@
expression E,E1;
identifier f;
statement S1,S2,S3;
@@
if ((E == NULL && ...) || ...)
{
... when != if (...) S1 else S2
when != E = E1
* E->f
... when any
return ...;
}
else S3
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| drivers/media/dvb/firewire/firedtv-1394.c | diffblobblamehistory | |
| drivers/media/video/hdpvr/hdpvr-video.c | diffblobblamehistory | |
| drivers/media/video/usbvision/usbvision-video.c | diffblobblamehistory |