[media] mx2_camera: fix missing unlock on error in mx2_start_streaming()

Add the missing unlock on the error handle path in function
mx2_start_streaming().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c
index f36b362..9a55f4c 100644 (file)
--- a/drivers/media/platform/soc_camera/mx2_camera.c
+++ b/drivers/media/platform/soc_camera/mx2_camera.c
@@ -864,8 +864,10 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count)
 
                bytesperline = soc_mbus_bytes_per_line(icd->user_width,
                                icd->current_fmt->host_fmt);
-               if (bytesperline < 0)
+               if (bytesperline < 0) {
+                       spin_unlock_irqrestore(&pcdev->lock, flags);
                        return bytesperline;
+               }
 
                /*
                 * I didn't manage to properly enable/disable the prp
@@ -878,8 +880,10 @@ static int mx2_start_streaming(struct vb2_queue *q, unsigned int count)
                pcdev->discard_buffer = dma_alloc_coherent(ici->v4l2_dev.dev,
                                pcdev->discard_size, &pcdev->discard_buffer_dma,
                                GFP_KERNEL);
-               if (!pcdev->discard_buffer)
+               if (!pcdev->discard_buffer) {
+                       spin_unlock_irqrestore(&pcdev->lock, flags);
                        return -ENOMEM;
+               }
 
                pcdev->buf_discard[0].discard = true;
                list_add_tail(&pcdev->buf_discard[0].queue,