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

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Message-Id: <20200525182608.1823735-5-kw@linux.com>
Date:   Mon, 25 May 2020 18:26:04 +0000
From:   Krzysztof Wilczyński <kw@...ux.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>, Kevin Hilman <khilman@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Pavel Machek <pavel@....cz>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Johan Hovold <johan@...nel.org>, Alex Elder <elder@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Felipe Balbi <balbi@...nel.org>,
        Julian Wiedmann <jwi@...ux.ibm.com>,
        Karsten Graul <kgraul@...ux.ibm.com>,
        Ursula Braun <ubraun@...ux.ibm.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        John Stultz <john.stultz@...aro.org>,
        "David S. Miller" <davem@...emloft.net>,
        greybus-dev@...ts.linaro.org, netdev@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-s390@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-usb@...r.kernel.org
Subject: [PATCH 4/8] scsi: pm: Use the new device_to_pm() helper to access struct dev_pm_ops

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@...ux.com>
---
 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