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peci: npcm: Initialize state before requesting IRQ

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The PECI interrupt handler uses the lock and completion object as soon as
the interrupt is delivered. Initialize both before registering the
handler so an early interrupt cannot access uninitialized state.

Fixes: 3e16184a1b ("peci: Add peci-npcm controller driver")
Cc: stable@vger.kernel.org
Assisted-by: Codex:GPT-5
Signed-off-by: Runyu Xiao <runyu.xiao@seu.edu.cn>
Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com>
Link: https://lore.kernel.org/r/20260902152256.3591658-1-runyu.xiao@seu.edu.cn
Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com>
This commit is contained in:
Runyu Xiao 2026-09-02 23:22:56 +08:00 committed by Iwona Winiarska
parent 61cf765b65
commit 425125e6d4
1 changed files with 3 additions and 3 deletions
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6
drivers/peci/controller/peci-npcm.c
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@ -253,14 +253,14 @@ static int npcm_peci_probe(struct platform_device *pdev)
if (priv->irq < 0)
return priv->irq;
init_completion(&priv->xfer_complete);
spin_lock_init(&priv->lock);
ret = devm_request_irq(&pdev->dev, priv->irq, npcm_peci_irq_handler,
0, "peci-npcm-irq", priv);
if (ret)
return ret;
init_completion(&priv->xfer_complete);
spin_lock_init(&priv->lock);
ret = npcm_peci_init_ctrl(priv);
if (ret)
return ret;