41 lines
1.2 KiB
Diff
41 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: He Min <min.he@intel.com>
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Date: Fri, 8 Mar 2019 08:13:08 +0000
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Subject: [PATCH] drm/i915/gvt: handles error when ioreq attach client fails
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In case of device model crashes accidentally, VHM will not be
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able to attach ioreq client, so acrngt needs to handle this
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failure case.
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Tracked-On: PKT-1797
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Signed-off-by: He Min <min.he@intel.com>
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Signed-off-by: Fengwei Yin <fengwei.yin@intel.com>
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Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
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---
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drivers/gpu/drm/i915/gvt/acrngt.c | 9 ++++++++-
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1 file changed, 8 insertions(+), 1 deletion(-)
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diff --git a/drivers/gpu/drm/i915/gvt/acrngt.c b/drivers/gpu/drm/i915/gvt/acrngt.c
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index 0f1154c8c6a3..e27b53b165aa 100644
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--- a/drivers/gpu/drm/i915/gvt/acrngt.c
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+++ b/drivers/gpu/drm/i915/gvt/acrngt.c
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@@ -237,7 +237,14 @@ static int acrngt_emulation_thread(void *priv)
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set_freezable();
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while (1) {
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- acrn_ioreq_attach_client(info->client, 1);
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+ ret = acrn_ioreq_attach_client(info->client, 1);
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+
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+ if (ret) {
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+ gvt_err("error while attach ioreq client %d\n", ret);
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+ info->client = 0;
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+ info->emulation_thread = NULL;
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+ return 0;
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+ }
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if (kthread_should_stop())
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return 0;
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--
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https://clearlinux.org
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