29 lines
905 B
Diff
29 lines
905 B
Diff
From 7588713482056dcb8395da1d6fa470559f139e94 Mon Sep 17 00:00:00 2001
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From: ligd <liguiding1@xiaomi.com>
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Date: Thu, 16 Feb 2023 17:41:57 +0800
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Subject: [PATCH 5/6] rpmsg: do cache_invalidate() when real data returned
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Change-Id: Ib5788c3974e40421deda2d100a46f61348ccafbd
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Signed-off-by: ligd <liguiding1@xiaomi.com>
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---
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lib/rpmsg/rpmsg_virtio.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/lib/rpmsg/rpmsg_virtio.c open-amp/lib/rpmsg/rpmsg_virtio.c
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index 1a510e6..3db86e6 100644
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--- a/lib/rpmsg/rpmsg_virtio.c
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+++ open-amp/lib/rpmsg/rpmsg_virtio.c
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@@ -239,7 +239,8 @@ static void *rpmsg_virtio_get_rx_buffer(struct rpmsg_virtio_device *rvdev,
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#ifdef VIRTIO_CACHED_BUFFERS
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/* Invalidate the buffer before returning it */
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- metal_cache_invalidate(data, *len);
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+ if (data)
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+ metal_cache_invalidate(data, *len);
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#endif /* VIRTIO_CACHED_BUFFERS */
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return data;
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--
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2.25.1
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