[PATCH] TW686x: Fix OOPS on buffer alloc failure

[Krzysztof Hałasa]

Signed-off-by: Krzysztof Hałasa <khal...@piap.pl>

diff --git a/drivers/media/pci/tw686x/tw686x-video.c 
b/drivers/media/pci/tw686x/tw686x-video.c
index c3fafa9..d637f47 100644
--- a/drivers/media/pci/tw686x/tw686x-video.c
+++ b/drivers/media/pci/tw686x/tw686x-video.c
@@ -1190,6 +1190,13 @@ int tw686x_video_init(struct tw686x_dev *dev)
                        return err;
        }
 
+       /* Initialize vc->dev and vc->ch for the error path first */
+       for (ch = 0; ch < max_channels(dev); ch++) {
+               struct tw686x_video_channel *vc = &dev->video_channels[ch];
+               vc->dev = dev;
+               vc->ch = ch;
+       }
+
        for (ch = 0; ch < max_channels(dev); ch++) {
                struct tw686x_video_channel *vc = &dev->video_channels[ch];
                struct video_device *vdev;
@@ -1198,9 +1205,6 @@ int tw686x_video_init(struct tw686x_dev *dev)
                spin_lock_init(&vc->qlock);
                INIT_LIST_HEAD(&vc->vidq_queued);
 
-               vc->dev = dev;
-               vc->ch = ch;
-
                /* default settings */
                err = tw686x_set_standard(vc, V4L2_STD_NTSC);
                if (err)