The commit 52c4dfcead49 ("Staging: vc04_services: Cleanup in
ctrl_set_bitrate()") changed the return behavior of ctrl_set_bitrate().
This breaks probing of bcm2835-camera:

    bcm2835-v4l2: mmal_init: failed to set all camera controls: -3
    Cleanup: Destroy video encoder
    Cleanup: Destroy image encoder
    Cleanup: Destroy video render
    Cleanup: Destroy camera
    bcm2835-v4l2: bcm2835_mmal_probe: mmal init failed: -3
    bcm2835-camera: probe of bcm2835-camera failed with error -3

So restore the old behavior and fix this issue.

Fixes: 52c4dfcead49 ("Staging: vc04_services: Cleanup in ctrl_set_bitrate()")
Signed-off-by: Stefan Wahren <wahre...@gmx.net>
---
 drivers/staging/vc04_services/bcm2835-camera/controls.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/vc04_services/bcm2835-camera/controls.c 
b/drivers/staging/vc04_services/bcm2835-camera/controls.c
index d60e378..1c4c9e8 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
+++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
@@ -610,9 +610,11 @@ static int ctrl_set_bitrate(struct bm2835_mmal_dev *dev,

        encoder_out = &dev->component[MMAL_COMPONENT_VIDEO_ENCODE]->output[0];

-       return vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
-                                            mmal_ctrl->mmal_id, &ctrl->val,
-                                            sizeof(ctrl->val));
+       vchiq_mmal_port_parameter_set(dev->instance, encoder_out,
+                                     mmal_ctrl->mmal_id, &ctrl->val,
+                                     sizeof(ctrl->val));
+
+       return 0;
 }

 static int ctrl_set_bitrate_mode(struct bm2835_mmal_dev *dev,
--
2.7.4

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