linux-kernel - [PATCH 0/2] bus: mhi: ep: Fix state

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Message-Id: <20260203-reset_worker_deadlock-v1-0-7ed889b5bf19@oss.qualcomm.com>
Date: Tue, 03 Feb 2026 12:25:00 +0530
From: Sumit Kumar <sumit.kumar@....qualcomm.com>
To: Manivannan Sadhasivam <mani@...nel.org>, Alex Elder <elder@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: mhi@...ts.linux.dev, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Veerabhadrarao Badiganti <veerabhadrarao.badiganti@....qualcomm.com>,
        Subramanian Ananthanarayanan <subramanian.ananthanarayanan@....qualcomm.com>,
        Akhil Vinod <akhil.vinod@....qualcomm.com>,
        Sumit Kumar <sumit.kumar@....qualcomm.com>
Subject: [PATCH 0/2] bus: mhi: ep: Fix state_lock protection issues

This series fixes a deadlock in mhi_ep_reset_worker() where state_lock is
acquired twice, and adds missing lock protection for mhi_state accesses
in mhi_ep_handle_syserr() and mhi_ep_power_up() to prevent race conditions
and state machine corruption.

Signed-off-by: Sumit Kumar <sumit.kumar@....qualcomm.com>
---
Sumit Kumar (2):
      bus: mhi: ep: Fix potential deadlock in mhi_ep_reset_worker()
      bus: mhi: ep: Add missing state_lock protection for mhi_state accesses

 drivers/bus/mhi/ep/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
base-commit: 6fa9041b7177f6771817b95e83f6df17b147c8c6
change-id: 20251113-reset_worker_deadlock-0223907f7c9d

Best regards,
-- 
Sumit Kumar <sumit.kumar@....qualcomm.com>