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