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Message-Id: <1468508975-6146-1-git-send-email-javier@osg.samsung.com>
Date: Thu, 14 Jul 2016 11:09:34 -0400
From: Javier Martinez Canillas <javier@....samsung.com>
To: linux-kernel@...r.kernel.org
Cc: Marek Szyprowski <m.szyprowski@...sung.com>,
Mauro Carvalho Chehab <mchehab@...pensource.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Pawel Osciak <pawel@...iak.com>, linux-media@...r.kernel.org,
Javier Martinez Canillas <javier@....samsung.com>
Subject: [PATCH] [media] vb2: include length in dmabuf qbuf debug message
If the the VIDIOC_QBUF ioctl fails due a wrong dmabuf length,
it's useful to get the invalid length as a debug information.
Before this patch:
vb2-core: __qbuf_dmabuf: invalid dmabuf length for plane 1
After this patch:
vb2-core: __qbuf_dmabuf: invalid dmabuf length 221248 for plane 1
Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
---
drivers/media/v4l2-core/videobuf2-core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index ca8ffeb56d72..97d1483e0f7a 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1228,8 +1228,8 @@ static int __qbuf_dmabuf(struct vb2_buffer *vb, const void *pb)
planes[plane].length = dbuf->size;
if (planes[plane].length < vb->planes[plane].min_length) {
- dprintk(1, "invalid dmabuf length for plane %d\n",
- plane);
+ dprintk(1, "invalid dmabuf length %d for plane %d\n",
+ planes[plane].length, plane);
dma_buf_put(dbuf);
ret = -EINVAL;
goto err;
--
2.5.5
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