From: Marek Szyprowski Date: Thu, 28 May 2020 14:03:26 +0000 (+0200) Subject: media: s5p-mfc: Properly handle dma_parms for the allocated devices X-Git-Tag: v5.15~3350^2~42 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cc8c0363ddce6308168d8223378ca884c213f280;p=platform%2Fkernel%2Flinux-starfive.git media: s5p-mfc: Properly handle dma_parms for the allocated devices Commit 9495b7e92f71 ("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 Suggested-by: Ulf Hansson Fixes: 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices") Signed-off-by: Marek Szyprowski Reviewed-by: Ulf Hansson Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c index 5c2a23b..eba2b9f 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c @@ -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; }