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[10/14] soc_camera: fix expbuf support

Message ID 1434368021-7467-11-git-send-email-hverkuil@xs4all.nl (mailing list archive)
State New, archived
Headers show

Commit Message

Hans Verkuil June 15, 2015, 11:33 a.m. UTC 
From: Hans Verkuil <hans.verkuil@cisco.com>

- For vb1 drivers just return -ENOTTY.
- For vb2 drivers allow vb2_expbuf without there being a stream owner:
  the vb2_expbuf function will return the correct error message in that case.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---
 drivers/media/platform/soc_camera/soc_camera.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index f24062d..5f1e5a8 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -470,14 +470,13 @@  static int soc_camera_expbuf(struct file *file, void *priv,
 	struct soc_camera_device *icd = file->private_data;
 	struct soc_camera_host *ici = to_soc_camera_host(icd->parent);
 
-	if (icd->streamer != file)
-		return -EBUSY;
-
 	/* videobuf2 only */
 	if (ici->ops->init_videobuf)
-		return -EINVAL;
-	else
-		return vb2_expbuf(&icd->vb2_vidq, p);
+		return -ENOTTY;
+
+	if (icd->streamer && icd->streamer != file)
+		return -EBUSY;
+	return vb2_expbuf(&icd->vb2_vidq, p);
 }
 
 /* Always entered with .host_lock held */