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| author | Kieran Bingham <kieran.bingham@ideasonboard.com> | 2018-03-26 09:29:17 -0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-04-04 06:27:28 -0400 |
| commit | 639fa43d59e5a41ca8c55592cd5c1021fea2ab83 (patch) | |
| tree | acd4968cfda7204acfb247142b718aa9af951175 /drivers/media | |
| parent | 19ad26f9e6e1decdde6d48fe1849a06a103b0f09 (diff) | |
| download | linux-639fa43d59e5a41ca8c55592cd5c1021fea2ab83.tar.gz linux-639fa43d59e5a41ca8c55592cd5c1021fea2ab83.tar.xz | |
media: vsp1: Fix BRx conditional path in WPF
When a BRx is provided by a pipeline, the WPF must determine the master
layer. Currently the condition to check this identifies pipe->bru ||
pipe->num_inputs > 1.
The code then moves on to dereference pipe->bru, thus the check fails
static analysers on the possibility that pipe->num_inputs could be
greater than 1 without pipe->bru being set.
The reality is that the pipeline must have a BRx to support more than
one input, thus this could never cause a fault - however it also
identifies that the num_inputs > 1 check is redundant.
Remove the redundant check - and always configure the master layer
appropriately when we have a BRx configured in our pipeline.
Fixes: 6134148f6098 ("v4l: vsp1: Add support for the BRS entity")
Cc: stable@vger.kernel.org
Suggested-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_wpf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c b/drivers/media/platform/vsp1/vsp1_wpf.c index f7f3b4b2c2de..8bd6b2f1af15 100644 --- a/drivers/media/platform/vsp1/vsp1_wpf.c +++ b/drivers/media/platform/vsp1/vsp1_wpf.c @@ -452,7 +452,7 @@ static void wpf_configure(struct vsp1_entity *entity, : VI6_WPF_SRCRPF_RPF_ACT_SUB(input->entity.index); } - if (pipe->bru || pipe->num_inputs > 1) + if (pipe->bru) srcrpf |= pipe->bru->type == VSP1_ENTITY_BRU ? VI6_WPF_SRCRPF_VIRACT_MST : VI6_WPF_SRCRPF_VIRACT2_MST; |