As reported by smatch:
drivers/media/platform/pxa_camera.c: In function 'pxa_dma_start_channels':
drivers/media/platform/pxa_camera.c:457:21: warning: variable 'active' set but not used [-Wunused-but-set-variable]
  struct pxa_buffer *active;
                     ^~~~~~
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
 static void pxa_dma_start_channels(struct pxa_camera_dev *pcdev)
 {
        int i;
-       struct pxa_buffer *active;
-
-       active = pcdev->active;
 
        for (i = 0; i < pcdev->channels; i++) {
                dev_dbg(pcdev_to_dev(pcdev),