32 lines
1.1 KiB
Diff
32 lines
1.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Liu Xinyun <xinyun.liu@intel.com>
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Date: Sun, 14 Jul 2019 11:21:28 +0800
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Subject: [PATCH] drivers/hyper_dmabuf: fix dead lock introduced when virtio tx
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ring is full
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release the unlocked mutex before exit
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Change-Id: I730584d69002e4ab2466100f307ef81f15419904
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Tracked-on: OAM-84155
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Signed-off-by: Liu Xinyun <xinyun.liu@intel.com>
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Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
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---
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drivers/dma-buf/hyper_dmabuf/virtio/hyper_dmabuf_virtio_be_drv.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/dma-buf/hyper_dmabuf/virtio/hyper_dmabuf_virtio_be_drv.c b/drivers/dma-buf/hyper_dmabuf/virtio/hyper_dmabuf_virtio_be_drv.c
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index 67b9c51de6de..27600a55688a 100644
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--- a/drivers/dma-buf/hyper_dmabuf/virtio/hyper_dmabuf_virtio_be_drv.c
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+++ b/drivers/dma-buf/hyper_dmabuf/virtio/hyper_dmabuf_virtio_be_drv.c
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@@ -486,6 +486,7 @@ static int virtio_be_send_req(int vmid, struct hyper_dmabuf_req *req,
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}
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if (timeout <= 0) {
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+ mutex_unlock(&priv->lock);
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dev_warn(hy_drv_priv->dev, "Requests ring full\n");
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return -EBUSY;
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}
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--
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https://clearlinux.org
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