[SRU][O][PATCH v2 7/8] phy: qcom: qmp-combo: move driver data initialisation earlier

[Juerg Haefliger]

From: Johan Hovold <johan+linaro at kernel.org>

BugLink: https://bugs.launchpad.net/bugs/2089237

Commit 44aff8e31080 ("phy: qcom-qmp-combo: clean up probe
initialisation") removed most users of the platform device driver data,
but mistakenly also removed the initialisation despite the data still
being used in the runtime PM callbacks.

The initialisation was soon after restored by commit 83a0bbe39b17 ("phy:
qcom-qmp-combo: add support for updated sc8280xp binding") but now
happens slightly later during probe. This should not cause any trouble
currently as runtime PM needs to be enabled manually through sysfs and
the platform device would not be suspended before the PHY has been
registered anyway.

Move the driver data initialisation to avoid a NULL-pointer dereference
on runtime suspend if runtime PM is ever enabled by default in this
driver.

Fixes: 44aff8e31080 ("phy: qcom-qmp-combo: clean up probe initialisation")
Signed-off-by: Johan Hovold <johan+linaro at kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
Link: https://lore.kernel.org/r/20240911115253.10920-5-johan+linaro@kernel.org
Signed-off-by: Vinod Koul <vkoul at kernel.org>
(cherry picked from commit 1dd196f9004848d0318e8831f962cc76255431d8)
Signed-off-by: Juerg Haefliger <juerg.haefliger at canonical.com>
---
 drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index 3d3e68aa0774..f1094bb67443 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -3649,6 +3649,7 @@ static int qmp_combo_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	qmp->dev = dev;
+	dev_set_drvdata(dev, qmp);
 
 	qmp->orientation = TYPEC_ORIENTATION_NORMAL;
 
@@ -3725,8 +3726,6 @@ static int qmp_combo_probe(struct platform_device *pdev)
 
 	phy_set_drvdata(qmp->dp_phy, qmp);
 
-	dev_set_drvdata(dev, qmp);
-
 	if (usb_np == dev->of_node)
 		phy_provider = devm_of_phy_provider_register(dev, qmp_combo_phy_xlate);
 	else
-- 
2.43.0