[PATCH AUTOSEL 5.7 147/388] slimbus: ngd: get drvdata from correct device

Sasha Levin
2020-06-18T01:11:23Z

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

[ Upstream commit b58c663059b484f7ff547d076a34cf6d7a302e56 ]

Get drvdata directly from parent instead of ngd dev, as ngd
dev can probe defer and previously set drvdata will become null.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200417093618.7929-1-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/slimbus/qcom-ngd-ctrl.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index fc2575fef51b..7426b5884218 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1361,7 +1361,6 @@ static int of_qcom_slim_ngd_register(struct device *parent,
ngd->pdev->driver_override = QCOM_SLIM_NGD_DRV_NAME;
ngd->pdev->dev.of_node = node;
ctrl->ngd = ngd;
- platform_set_drvdata(ngd->pdev, ctrl);

platform_device_add(ngd->pdev);
ngd->base = ctrl->base + ngd->id * data->offset +
@@ -1376,12 +1375,13 @@ static int of_qcom_slim_ngd_register(struct device *parent,

static int qcom_slim_ngd_probe(struct platform_device *pdev)
{
- struct qcom_slim_ngd_ctrl *ctrl = platform_get_drvdata(pdev);
struct device *dev = &pdev->dev;
+ struct qcom_slim_ngd_ctrl *ctrl = dev_get_drvdata(dev->parent);
int ret;

ctrl->ctrl.dev = dev;

+ platform_set_drvdata(pdev, ctrl);
pm_runtime_use_autosuspend(dev);
pm_runtime_set_autosuspend_delay(dev, QCOM_SLIM_NGD_AUTOSUSPEND);
pm_runtime_set_suspended(dev);
--
2.25.1