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media: vimc: zero the media_device on probe

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[ Upstream commit f74267b51c ]

The media_device is part of a static global vimc_device struct.
The media framework expects this to be zeroed before it is
used, however, since this is a global this is not the case if
vimc is unbound and then bound again.

So call memset to ensure any left-over values are cleared.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hans Verkuil
2019-03-08 08:02:26 -05:00
committed by Greg Kroah-Hartman
parent b9da4f98ba
commit 5cacdab854
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/vimc/vimc-core.c
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@@ -302,6 +302,8 @@ static int vimc_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "probe");
memset(&vimc->mdev, 0, sizeof(vimc->mdev));
/* Create platform_device for each entity in the topology*/
vimc->subdevs = devm_kcalloc(&vimc->pdev.dev, vimc->pipe_cfg->num_ents,
sizeof(*vimc->subdevs), GFP_KERNEL);