[media] drivers/media/usb/{s2255drv.c, tm6000/tm6000-alsa.c, tm6000/tm6000-input.c}: Remove potential NULL dereferences
If the NULL test is necessary, the initialization involving a dereference of
the tested value should be moved after the NULL test.
The sematic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
type T;
expression E;
identifier i,fld;
statement S;
@@
- T i = E->fld;
+ T i;
... when != E
when != i
if (E == NULL) S
+ i = E->fld;
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/usb/tm6000/tm6000-input.c b/drivers/media/usb/tm6000/tm6000-input.c
index e80b7e1..dffbd4b 100644
--- a/drivers/media/usb/tm6000/tm6000-input.c
+++ b/drivers/media/usb/tm6000/tm6000-input.c
@@ -319,12 +319,13 @@
static int __tm6000_ir_int_start(struct rc_dev *rc)
{
struct tm6000_IR *ir = rc->priv;
- struct tm6000_core *dev = ir->dev;
+ struct tm6000_core *dev;
int pipe, size;
int err = -ENOMEM;
if (!ir)
return -ENODEV;
+ dev = ir->dev;
dprintk(2, "%s\n",__func__);