[PATCH 5.4.y] media: venus: hfi: explicitly release IRQ during teardown

[Sasha Levin <sashal@kernel.org>]

From: Jorge Ramirez-Ortiz <jorge.ramirez@oss.qualcomm.com>

[ 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>
[ Adjust context ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/media/platform/qcom/venus/hfi_venus.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c
index 1b37d77bf998..b3d1c8d4f461 100644
--- a/drivers/media/platform/qcom/venus/hfi_venus.c
+++ b/drivers/media/platform/qcom/venus/hfi_venus.c
@@ -1604,6 +1604,7 @@ void venus_hfi_destroy(struct venus_core *core)
 	mutex_destroy(&hdev->lock);
 	kfree(hdev);
 	core->priv = NULL;
+	disable_irq(core->irq);
 	core->ops = NULL;
 }
 
-- 
2.50.1