media: venus: hfi: explicitly release IRQ during teardown

[ Upstream commit 640803003cd903cea73dc6a86bf6963e238e2b3f ]

Ensure the IRQ is disabled - and all pending handlers completed - before
dismantling the interrupt routing and clearing related pointers.

This prevents any possibility of the interrupt triggering after the
handler context has been invalidated.

Fixes: d96d3f30c0f2 ("[media] media: venus: hfi: add Venus HFI files")
Cc: stable@vger.kernel.org
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@oss.qualcomm.com>
Reviewed-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
Tested-by: Dikshita Agarwal <quic_dikshita@quicinc.com> # RB5
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
index 6f935fc1a55545d3d784147f662b60ea6ca081b1..4f25703e55a7fa1d2923ba134bff204ee1a5e63b 100644 (file)
--- a/drivers/media/platform/qcom/venus/hfi_venus.c
+++ b/drivers/media/platform/qcom/venus/hfi_venus.c
@@ -1620,6 +1620,7 @@ void venus_hfi_destroy(struct venus_core *core)
        venus_interface_queues_release(hdev);
        mutex_destroy(&hdev->lock);
        kfree(hdev);
+       disable_irq(core->irq);
        core->ops = NULL;
 }