Device-managed resources allocated post component bind must be tied to
the lifetime of the aggregate DRM device or they will not necessarily be
released when binding of the aggregate device is deferred.

This is specifically true for the HDMI IRQ, which will otherwise remain
requested so that the next bind attempt fails when requesting the IRQ a
second time.

Fix this by tying the device-managed lifetime of the HDMI IRQ to the DRM
device so that it is released when bind fails.

Fixes: 067fef372c73 ("drm/msm/hdmi: refactor bind/init")
Cc: stable@vger.kernel.org      # 3.19
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/gpu/drm/msm/hdmi/hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index a0ed6aa8e4e1..f28fb21e3891 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -344,7 +344,7 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi,
 		goto fail;
 	}
 
-	ret = devm_request_irq(&pdev->dev, hdmi->irq,
+	ret = devm_request_irq(dev->dev, hdmi->irq,
 			msm_hdmi_irq, IRQF_TRIGGER_HIGH,
 			"hdmi_isr", hdmi);
 	if (ret < 0) {
-- 
2.35.1

On 9/13/2022 1:53 AM, Johan Hovold wrote:
> Device-managed resources allocated post component bind must be tied to
> the lifetime of the aggregate DRM device or they will not necessarily be
> released when binding of the aggregate device is deferred.
>
> This is specifically true for the HDMI IRQ, which will otherwise remain
> requested so that the next bind attempt fails when requesting the IRQ a
> second time.
>
> Fix this by tying the device-managed lifetime of the HDMI IRQ to the DRM
> device so that it is released when bind fails.
>
> Fixes: 067fef372c73 ("drm/msm/hdmi: refactor bind/init")
> Cc: stable@vger.kernel.org      # 3.19
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>

> Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
> Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>

> ---
>   drivers/gpu/drm/msm/hdmi/hdmi.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
> index a0ed6aa8e4e1..f28fb21e3891 100644
> --- a/drivers/gpu/drm/msm/hdmi/hdmi.c
> +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
> @@ -344,7 +344,7 @@ int msm_hdmi_modeset_init(struct hdmi *hdmi,
>   		goto fail;
>   	}
>   
> -	ret = devm_request_irq(&pdev->dev, hdmi->irq,
> +	ret = devm_request_irq(dev->dev, hdmi->irq,
>   			msm_hdmi_irq, IRQF_TRIGGER_HIGH,
>   			"hdmi_isr", hdmi);
>   	if (ret < 0) {

On Thu, Sep 22, 2022 at 12:55:03PM -0700, Kuogee Hsieh wrote:
> 
> On 9/13/2022 1:53 AM, Johan Hovold wrote:
> > Device-managed resources allocated post component bind must be tied to
> > the lifetime of the aggregate DRM device or they will not necessarily be
> > released when binding of the aggregate device is deferred.
> >
> > This is specifically true for the HDMI IRQ, which will otherwise remain
> > requested so that the next bind attempt fails when requesting the IRQ a
> > second time.
> >
> > Fix this by tying the device-managed lifetime of the HDMI IRQ to the DRM
> > device so that it is released when bind fails.
> >
> > Fixes: 067fef372c73 ("drm/msm/hdmi: refactor bind/init")
> > Cc: stable@vger.kernel.org      # 3.19
> > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> > Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> 
> > Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
> > Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>

I believe you meant:

Tested-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>

here (i.e. without the '>' quotes). Otherwise the tooling may not pick
these up.

Thanks for reviewing and testing.

Johan