From 4d59c7d455853edca990848b1cb7c482b4628f32 Mon Sep 17 00:00:00 2001 From: Benoit Parrot Date: Mon, 7 Oct 2019 12:09:51 -0300 Subject: [PATCH] media: ti-vpe: vpe: Add missing null pointer checks A few NULL pointer checks were missing. Add check with appropriate return code. Signed-off-by: Benoit Parrot Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/ti-vpe/vpe.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c index 5ba72445584d..56f60dbea15c 100644 --- a/drivers/media/platform/ti-vpe/vpe.c +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -1537,6 +1537,8 @@ static int vpe_g_fmt(struct file *file, void *priv, struct v4l2_format *f) return -EINVAL; q_data = get_q_data(ctx, f->type); + if (!q_data) + return -EINVAL; pix->width = q_data->width; pix->height = q_data->height; @@ -2001,6 +2003,8 @@ static int vpe_queue_setup(struct vb2_queue *vq, struct vpe_q_data *q_data; q_data = get_q_data(ctx, vq->type); + if (!q_data) + return -EINVAL; *nplanes = q_data->nplanes; @@ -2025,6 +2029,8 @@ static int vpe_buf_prepare(struct vb2_buffer *vb) vpe_dbg(ctx->dev, "type: %d\n", vb->vb2_queue->type); q_data = get_q_data(ctx, vb->vb2_queue->type); + if (!q_data) + return -EINVAL; num_planes = q_data->nplanes; if (vb->vb2_queue->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) { @@ -2481,7 +2487,12 @@ static int vpe_probe(struct platform_device *pdev) mutex_init(&dev->dev_mutex); dev->res = platform_get_resource_byname(pdev, IORESOURCE_MEM, - "vpe_top"); + "vpe_top"); + if (!dev->res) { + dev_err(&pdev->dev, "missing 'vpe_top' resources data\n"); + return -ENODEV; + } + /* * HACK: we get resource info from device tree in the form of a list of * VPE sub blocks, the driver currently uses only the base of vpe_top -- 2.39.5