[media] vb2: change result code of buf_finish to void

The buf_finish op should always work, so change the return type to void.
Update the few drivers that use it.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Reviewed-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

8 files changed, 9 insertions, 19 deletions

diff --git a/drivers/media/parport/bw-qcam.c b/drivers/media/parport/bw-qcam.c
index a0a6ee6398fe..cf2db63da3b1 100644
--- a/drivers/media/parport/bw-qcam.c
+++ b/drivers/media/parport/bw-qcam.c
@@ -667,7 +667,7 @@ static void buffer_queue(struct vb2_buffer *vb)
         vb2_buffer_done(vb, VB2_BUF_STATE_DONE);
 }
 
-static int buffer_finish(struct vb2_buffer *vb)
+static void buffer_finish(struct vb2_buffer *vb)
 {
         struct qcam *qcam = vb2_get_drv_priv(vb->vb2_queue);
         void *vbuf = vb2_plane_vaddr(vb, 0);
@@ -691,7 +691,6 @@ static int buffer_finish(struct vb2_buffer *vb)
         if (len != size)
                 vb->state = VB2_BUF_STATE_ERROR;
         vb2_set_plane_payload(vb, 0, len);
-        return 0;
 }
 
 static struct vb2_ops qcam_video_qops = {
diff --git a/drivers/media/pci/sta2x11/sta2x11_vip.c b/drivers/media/pci/sta2x11/sta2x11_vip.c
index e5cfb6cfa18d..e66556cae7ea 100644
--- a/drivers/media/pci/sta2x11/sta2x11_vip.c
+++ b/drivers/media/pci/sta2x11/sta2x11_vip.c
@@ -327,7 +327,7 @@ static void buffer_queue(struct vb2_buffer *vb)
         }
         spin_unlock(&vip->lock);
 }
-static int buffer_finish(struct vb2_buffer *vb)
+static void buffer_finish(struct vb2_buffer *vb)
 {
         struct sta2x11_vip *vip = vb2_get_drv_priv(vb->vb2_queue);
         struct vip_buffer *vip_buf = to_vip_buffer(vb);
@@ -338,8 +338,6 @@ static int buffer_finish(struct vb2_buffer *vb)
         spin_unlock(&vip->lock);
 
         vip_active_buf_next(vip);
-
-        return 0;
 }
 
 static int start_streaming(struct vb2_queue *vq, unsigned int count)
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 32fab30a9105..8b34c485be79 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -1238,7 +1238,7 @@ static int mcam_vb_sg_buf_prepare(struct vb2_buffer *vb)
         return 0;
 }
 
-static int mcam_vb_sg_buf_finish(struct vb2_buffer *vb)
+static void mcam_vb_sg_buf_finish(struct vb2_buffer *vb)
 {
         struct mcam_camera *cam = vb2_get_drv_priv(vb->vb2_queue);
         struct sg_table *sg_table = vb2_dma_sg_plane_desc(vb, 0);
@@ -1246,7 +1246,6 @@ static int mcam_vb_sg_buf_finish(struct vb2_buffer *vb)
         if (sg_table)
                 dma_unmap_sg(cam->dev, sg_table->sgl,
                                 sg_table->nents, DMA_FROM_DEVICE);
-        return 0;
 }
 
 static void mcam_vb_sg_buf_cleanup(struct vb2_buffer *vb)
diff --git a/drivers/media/usb/pwc/pwc-if.c b/drivers/media/usb/pwc/pwc-if.c
index 8bef0152b1ce..1a27096b3f91 100644
--- a/drivers/media/usb/pwc/pwc-if.c
+++ b/drivers/media/usb/pwc/pwc-if.c
@@ -614,7 +614,7 @@ static int buffer_prepare(struct vb2_buffer *vb)
         return 0;
 }
 
-static int buffer_finish(struct vb2_buffer *vb)
+static void buffer_finish(struct vb2_buffer *vb)
 {
         struct pwc_device *pdev = vb2_get_drv_priv(vb->vb2_queue);
         struct pwc_frame_buf *buf = container_of(vb, struct pwc_frame_buf, vb);
@@ -624,7 +624,7 @@ static int buffer_finish(struct vb2_buffer *vb)
          * filled, take the pwc data we've stored in buf->data and decompress
          * it into a usable format, storing the result in the vb2_buffer
          */
-        return pwc_decompress(pdev, buf);
+        pwc_decompress(pdev, buf);
 }
 
 static void buffer_cleanup(struct vb2_buffer *vb)
diff --git a/drivers/media/usb/uvc/uvc_queue.c b/drivers/media/usb/uvc/uvc_queue.c
index 935556e88ca5..26172cbcf096 100644
--- a/drivers/media/usb/uvc/uvc_queue.c
+++ b/drivers/media/usb/uvc/uvc_queue.c
@@ -106,7 +106,7 @@ static void uvc_buffer_queue(struct vb2_buffer *vb)
         spin_unlock_irqrestore(&queue->irqlock, flags);
 }
 
-static int uvc_buffer_finish(struct vb2_buffer *vb)
+static void uvc_buffer_finish(struct vb2_buffer *vb)
 {
         struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue);
         struct uvc_streaming *stream =
@@ -114,7 +114,6 @@ static int uvc_buffer_finish(struct vb2_buffer *vb)
         struct uvc_buffer *buf = container_of(vb, struct uvc_buffer, buf);
 
         uvc_video_clock_update(stream, &vb->v4l2_buf, buf);
-        return 0;
 }
 
 static void uvc_wait_prepare(struct vb2_queue *vq)
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 917b1cbb5cbf..2be3cfec2ac8 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1834,11 +1834,7 @@ static int vb2_internal_dqbuf(struct vb2_queue *q, struct v4l2_buffer *b, bool n
         if (ret < 0)
                 return ret;
 
-        ret = call_vb_qop(vb, buf_finish, vb);
-        if (ret) {
-                dprintk(1, "dqbuf: buffer finish failed\n");
-                return ret;
-        }
+        call_vb_qop(vb, buf_finish, vb);
 
         switch (vb->state) {
         case VB2_BUF_STATE_DONE:
diff --git a/drivers/staging/media/go7007/go7007-v4l2.c b/drivers/staging/media/go7007/go7007-v4l2.c
index efacda244452..a34987814578 100644
--- a/drivers/staging/media/go7007/go7007-v4l2.c
+++ b/drivers/staging/media/go7007/go7007-v4l2.c
@@ -470,7 +470,7 @@ static int go7007_buf_prepare(struct vb2_buffer *vb)
         return 0;
 }
 
-static int go7007_buf_finish(struct vb2_buffer *vb)
+static void go7007_buf_finish(struct vb2_buffer *vb)
 {
         struct vb2_queue *vq = vb->vb2_queue;
         struct go7007 *go = vb2_get_drv_priv(vq);
@@ -483,7 +483,6 @@ static int go7007_buf_finish(struct vb2_buffer *vb)
                         V4L2_BUF_FLAG_PFRAME);
         buf->flags |= frame_type_flag;
         buf->field = V4L2_FIELD_NONE;
-        return 0;
 }
 
 static int go7007_start_streaming(struct vb2_queue *q, unsigned int count)
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 2fdb08a78b95..8d62a51cb7a0 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -311,7 +311,7 @@ struct vb2_ops {
 
         int (*buf_init)(struct vb2_buffer *vb);
         int (*buf_prepare)(struct vb2_buffer *vb);
-        int (*buf_finish)(struct vb2_buffer *vb);
+        void (*buf_finish)(struct vb2_buffer *vb);
         void (*buf_cleanup)(struct vb2_buffer *vb);
 
         int (*start_streaming)(struct vb2_queue *q, unsigned int count);