42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
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Date: Tue, 31 Jul 2018 14:39:39 -0700
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Subject: [PATCH] hyper_dmabuf: Check for NULL value before access work
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pointer.
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In delayed_unexport() check for work pointer NULL value before accessing
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it.
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Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.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/hyper_dmabuf_ioctl.c | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/drivers/dma-buf/hyper_dmabuf/hyper_dmabuf_ioctl.c b/drivers/dma-buf/hyper_dmabuf/hyper_dmabuf_ioctl.c
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index e9f1d64ee60b..66cdcf6eff78 100644
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--- a/drivers/dma-buf/hyper_dmabuf/hyper_dmabuf_ioctl.c
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+++ b/drivers/dma-buf/hyper_dmabuf/hyper_dmabuf_ioctl.c
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@@ -574,14 +574,15 @@ static void delayed_unexport(struct work_struct *work)
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{
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struct hyper_dmabuf_req *req;
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struct hyper_dmabuf_bknd_ops *bknd_ops = hy_drv_priv->bknd_ops;
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- struct exported_sgt_info *exported =
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- container_of(work, struct exported_sgt_info, unexport.work);
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+ struct exported_sgt_info *exported;
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int op[4];
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int i, ret;
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- if (!exported)
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+ if (!work)
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return;
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+ exported = container_of(work, struct exported_sgt_info, unexport.work);
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+
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dev_dbg(hy_drv_priv->dev,
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"Marking buffer {id:%d key:%d %d %d} as invalid\n",
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exported->hid.id, exported->hid.rng_key[0],
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--
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https://clearlinux.org
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