From: Gerd Hoffmann <kraxel@redhat.com>
To: dri-devel@lists.freedesktop.org
Cc: laurent.pinchart@ideasonboard.com, daniel@ffwll.ch,
Gerd Hoffmann <kraxel@redhat.com>,
Sumit Semwal <sumit.semwal@linaro.org>,
linux-media@vger.kernel.org (open list:DMA BUFFER SHARING
FRAMEWORK),
linaro-mm-sig@lists.linaro.org (moderated list:DMA BUFFER
SHARING FRAMEWORK), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 2/3] udmabuf: check that __pad is zero
Date: Thu, 22 Aug 2019 11:36:53 +0200 [thread overview]
Message-ID: <20190822093654.23752-3-kraxel@redhat.com> (raw)
In-Reply-To: <20190822093654.23752-1-kraxel@redhat.com>
Reported-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/dma-buf/udmabuf.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index 9635897458a0..6c3ec8fcef01 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -137,6 +137,8 @@ static long udmabuf_create(const struct udmabuf_create_list *head,
pglimit = (size_limit_mb * 1024 * 1024) >> PAGE_SHIFT;
for (i = 0; i < head->count; i++) {
+ if (list[i].__pad)
+ goto err;
if (!IS_ALIGNED(list[i].offset, PAGE_SIZE))
goto err;
if (!IS_ALIGNED(list[i].size, PAGE_SIZE))
--
2.18.1
next prev parent reply other threads:[~2019-08-22 9:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190822093654.23752-1-kraxel@redhat.com>
2019-08-22 9:36 ` [PATCH 1/3] udmabuf: add documentation Gerd Hoffmann
2019-08-22 9:36 ` Gerd Hoffmann [this message]
2019-08-22 9:36 ` [PATCH 3/3] udmabuf: check that flags has no unsupported bits set Gerd Hoffmann
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