[media] media: davinci: vpif_capture: move the freeing of irq and global variables to remove()

Ideally the freeing of irq's and the global variables needs to be
done in the remove() rather than module_exit(), this patch moves
the freeing up of irq's and freeing the memory allocated to channel
objects to remove() callback of struct platform_driver.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 11 insertions, 18 deletions

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index d004531e740d..7d3c449d9d7d 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -2159,17 +2159,27 @@ vpif_int_err:
  */
 static int vpif_remove(struct platform_device *device)
 {
-        int i;
         struct channel_obj *ch;
+        struct resource *res;
+        int irq_num, i = 0;
+
+        while ((res = platform_get_resource(device, IORESOURCE_IRQ, i))) {
+                for (irq_num = res->start; irq_num <= res->end; irq_num++)
+                        free_irq(irq_num,
+                                 (void *)(&vpif_obj.dev[i]->channel_id));
+                i++;
+        }
 
         v4l2_device_unregister(&vpif_obj.v4l2_dev);
 
+        kfree(vpif_obj.sd);
         /* un-register device */
         for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
                 /* Get the pointer to the channel object */
                 ch = vpif_obj.dev[i];
                 /* Unregister video device */
                 video_unregister_device(ch->video_dev);
+                kfree(vpif_obj.dev[i]);
         }
         return 0;
 }
@@ -2281,24 +2291,7 @@ static __init int vpif_init(void)
  */
 static void vpif_cleanup(void)
 {
-        struct platform_device *pdev;
-        struct resource *res;
-        int irq_num;
-        int i = 0;
-
-        pdev = container_of(vpif_dev, struct platform_device, dev);
-        while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, i))) {
-                for (irq_num = res->start; irq_num <= res->end; irq_num++)
-                        free_irq(irq_num,
-                                 (void *)(&vpif_obj.dev[i]->channel_id));
-                i++;
-        }
-
         platform_driver_unregister(&vpif_driver);
-
-        kfree(vpif_obj.sd);
-        for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++)
-                kfree(vpif_obj.dev[i]);
 }
 
 /* Function for module initialization and cleanup */