[PATCH 4/8] scsi: pm: Use the new device_to_pm() helper to access struct dev_pm_ops

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Use the new device_to_pm() helper to access Power Management callbacs
(struct dev_pm_ops) for a particular device (struct device_driver).

No functional change intended.

Signed-off-by: Krzysztof Wilczyński <kw@xxxxxxxxx>
---
 drivers/scsi/scsi_pm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index 5f0ad8b32e3a..8f40b60d3383 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -53,7 +53,7 @@ static int do_scsi_restore(struct device *dev, const struct dev_pm_ops *pm)
 static int scsi_dev_type_suspend(struct device *dev,
 		int (*cb)(struct device *, const struct dev_pm_ops *))
 {
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+	const struct dev_pm_ops *pm = driver_to_pm(dev->driver);
 	int err;
 
 	/* flush pending in-flight resume operations, suspend is synchronous */
@@ -72,7 +72,7 @@ static int scsi_dev_type_suspend(struct device *dev,
 static int scsi_dev_type_resume(struct device *dev,
 		int (*cb)(struct device *, const struct dev_pm_ops *))
 {
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+	const struct dev_pm_ops *pm = driver_to_pm(dev->driver);
 	int err = 0;
 
 	err = cb(dev, pm);
@@ -232,7 +232,7 @@ static int scsi_bus_restore(struct device *dev)
 
 static int sdev_runtime_suspend(struct device *dev)
 {
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+	const struct dev_pm_ops *pm = driver_to_pm(dev->driver);
 	struct scsi_device *sdev = to_scsi_device(dev);
 	int err = 0;
 
@@ -262,7 +262,7 @@ static int scsi_runtime_suspend(struct device *dev)
 static int sdev_runtime_resume(struct device *dev)
 {
 	struct scsi_device *sdev = to_scsi_device(dev);
-	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
+	const struct dev_pm_ops *pm = driver_to_pm(dev->driver);
 	int err = 0;
 
 	blk_pre_runtime_resume(sdev->request_queue);
-- 
2.26.2




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