From 54898664e1eb6b5b3e6cdd9343c6eb15da776153 Mon Sep 17 00:00:00 2001 From: Stephan Gerhold Date: Wed, 20 Aug 2025 18:02:34 +0200 Subject: [PATCH] remoteproc: qcom: q6v5: Avoid handling handover twice A remoteproc could theoretically signal handover twice. This is unexpected and would break the reference counting for the handover resources (power domains, clocks, regulators, etc), so add a check to prevent that from happening. Reviewed-by: Dmitry Baryshkov Signed-off-by: Stephan Gerhold Link: https://lore.kernel.org/r/20250820-rproc-qcom-q6v5-fixes-v2-2-910b1a3aff71@linaro.org Signed-off-by: Bjorn Andersson --- drivers/remoteproc/qcom_q6v5.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c index 769c6d6d6a731..58d5b85e58cda 100644 --- a/drivers/remoteproc/qcom_q6v5.c +++ b/drivers/remoteproc/qcom_q6v5.c @@ -164,6 +164,11 @@ static irqreturn_t q6v5_handover_interrupt(int irq, void *data) { struct qcom_q6v5 *q6v5 = data; + if (q6v5->handover_issued) { + dev_err(q6v5->dev, "Handover signaled, but it already happened\n"); + return IRQ_HANDLED; + } + if (q6v5->handover) q6v5->handover(q6v5); -- 2.47.3