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| author | Robert Jarzmik | 2015-09-06 13:42:10 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab | 2016-03-03 11:17:12 +0100 |
| commit | 8f4895f2bd83cbf5afae25f3b35ea0f5d46d48c6 (patch) | |
| tree | 7797ae8b2a79217bdbd14cbeca6acc47dcf20733 /drivers/media/platform/soc_camera | |
| parent | [media] mx3_camera: use %pad format string for dma_ddr_t (diff) | |
| download | kernel-qcow2-linux-8f4895f2bd83cbf5afae25f3b35ea0f5d46d48c6.tar.gz kernel-qcow2-linux-8f4895f2bd83cbf5afae25f3b35ea0f5d46d48c6.tar.xz kernel-qcow2-linux-8f4895f2bd83cbf5afae25f3b35ea0f5d46d48c6.zip | |
[media] pxa_camera: fix the buffer free path
Fix the error path where the video buffer wasn't allocated nor
mapped. In this case, in the driver free path don't try to unmap memory
which was not mapped in the first place.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/soc_camera')
| -rw-r--r-- | drivers/media/platform/soc_camera/pxa_camera.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/media/platform/soc_camera/pxa_camera.c b/drivers/media/platform/soc_camera/pxa_camera.c index 415f3bda60bf..924b07d0b6c1 100644 --- a/drivers/media/platform/soc_camera/pxa_camera.c +++ b/drivers/media/platform/soc_camera/pxa_camera.c @@ -272,8 +272,6 @@ static void free_buffer(struct videobuf_queue *vq, struct pxa_buffer *buf) * longer in STATE_QUEUED or STATE_ACTIVE */ videobuf_waiton(vq, &buf->vb, 0, 0); - videobuf_dma_unmap(vq->dev, dma); - videobuf_dma_free(dma); for (i = 0; i < ARRAY_SIZE(buf->dmas); i++) { if (buf->dmas[i].sg_cpu) @@ -283,6 +281,8 @@ static void free_buffer(struct videobuf_queue *vq, struct pxa_buffer *buf) buf->dmas[i].sg_dma); buf->dmas[i].sg_cpu = NULL; } + videobuf_dma_unmap(vq->dev, dma); + videobuf_dma_free(dma); buf->vb.state = VIDEOBUF_NEEDS_INIT; } @@ -479,7 +479,7 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, ret = videobuf_iolock(vq, vb, NULL); if (ret) - goto fail; + goto out; if (pcdev->channels == 3) { size_y = size / 2; @@ -504,7 +504,7 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, size_u, &sg, &next_ofs); if (ret) { dev_err(dev, "DMA initialization for U failed\n"); - goto fail_u; + goto fail; } /* init DMA for V channel */ @@ -513,7 +513,7 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, size_v, &sg, &next_ofs); if (ret) { dev_err(dev, "DMA initialization for V failed\n"); - goto fail_v; + goto fail; } vb->state = VIDEOBUF_PREPARED; @@ -524,12 +524,6 @@ static int pxa_videobuf_prepare(struct videobuf_queue *vq, return 0; -fail_v: - dma_free_coherent(dev, buf->dmas[1].sg_size, - buf->dmas[1].sg_cpu, buf->dmas[1].sg_dma); -fail_u: - dma_free_coherent(dev, buf->dmas[0].sg_size, - buf->dmas[0].sg_cpu, buf->dmas[0].sg_dma); fail: free_buffer(vq, buf); out: |