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media: s5p-mfc: Properly handle dma_parms for the allocated devices

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Commit 9495b7e92f ("driver core: platform: Initialize dma_parms for
platform devices") in v5.7-rc5 added allocation of dma_parms structure to
all platform devices. Then vb2_dma_contig_set_max_seg_size() have been
changed not to allocate dma_parms structure and rely on the one allocated
by the device core. Lets allocate the needed structure also for the
devices created for the 2 MFC device memory ports.

Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Suggested-by: Ulf Hansson <ulf.hansson@linaro.org>
Fixes: 9495b7e92f ("driver core: platform: Initialize dma_parms for platform devices")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Marek Szyprowski 2020-05-28 16:03:26 +02:00 committed by Mauro Carvalho Chehab
parent 15168b2046
commit cc8c0363dd
1 changed files with 5 additions and 1 deletions
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6
drivers/media/platform/s5p-mfc/s5p_mfc.c
View file

@ -1089,6 +1089,10 @@ static struct device *s5p_mfc_alloc_memdev(struct device *dev,
child->coherent_dma_mask = dev->coherent_dma_mask;
child->dma_mask = dev->dma_mask;
child->release = s5p_mfc_memdev_release;
child->dma_parms = devm_kzalloc(dev, sizeof(*child->dma_parms),
GFP_KERNEL);
if (!child->dma_parms)
goto err;
/*
* The memdevs are not proper OF platform devices, so in order for them
@ -1104,7 +1108,7 @@ static struct device *s5p_mfc_alloc_memdev(struct device *dev,
return child;
device_del(child);
}
err:
put_device(child);
return NULL;
}