[media] drivers/media/video: add missing kfree

Free the recently allocated qcam in each case.

The semantic match that finds this problem is as follows:

// <smpl>
@r@
identifier x;
@@

kfree(x)

@@
identifier r.x;
expression E1!=0,E2,E3,E4;
statement S;
@@

(
if (<+...x...+>) S
|
if (...) { ... when != kfree(x)
when != if (...) { ... kfree(x); ... }
when != x = E3
* return E1;
}
... when != x = E2
if (...) { ... when != x = E4
kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/media/video/bw-qcam.c

···
 
 	if (v4l2_device_register(NULL, v4l2_dev) < 0) {
 		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		kfree(qcam);
 		return NULL;
 	}
 

drivers/media/video/c-qcam.c

···
 
 	if (v4l2_device_register(NULL, v4l2_dev) < 0) {
 		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		kfree(qcam);
 		return NULL;
 	}