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From 5d3a19c0fd89f6721a01c882d37a6f114337edb7 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Mon, 7 Jan 2019 13:04:14 +0100
Subject: [PATCH 9/9] media: s5p-mfc: fix incorrect bus assignment in virtual
child device
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Virtual MFC codec's child devices must not be assigned to platform bus,
because they are allocated as raw 'struct device' and don't have the
corresponding 'platform' part. This fixes NULL pointer access revealed
recently by commit a66d972465d1 ("devres: Align data[] to
ARCH_KMALLOC_MINALIGN").
Reported-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
Fixes: c79667dd93b0 ("media: s5p-mfc: replace custom reserved memory handling code with generic one")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com>
---
drivers/media/platform/s5p-mfc/s5p_mfc.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 8a5ba3bec3af..0a9f59d89185 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1089,7 +1089,6 @@ static struct device *s5p_mfc_alloc_memdev(struct device *dev,
device_initialize(child);
dev_set_name(child, "%s:%s", dev_name(dev), name);
child->parent = dev;
- child->bus = dev->bus;
child->coherent_dma_mask = dev->coherent_dma_mask;
child->dma_mask = dev->dma_mask;
child->release = s5p_mfc_memdev_release;
--
2.19.2
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