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Message-Id: <20211231033901.2168664-2-baolu.lu@linux.intel.com>
Date: Fri, 31 Dec 2021 11:39:00 +0800
From: Lu Baolu <baolu.lu@...ux.intel.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: "Rafael J . Wysocki" <rafael@...nel.org>,
Kay Sievers <kay.sievers@...ell.com>,
linux-kernel@...r.kernel.org, Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH v2 1/2] driver core: Move driver_sysfs_remove() after driver_sysfs_add()
The driver_sysfs_remove() should be called after driver_sysfs_add() in
really_probe(). The out-of-order driver_sysfs_remove() tries to remove
some nonexistent nodes under the device and driver sysfs nodes. This is
allowed, hence this change doesn't fix any problem, just a cleanup.
Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
---
drivers/base/dd.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 68ea1f949daa..f6fac016b811 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -577,14 +577,14 @@ static int really_probe(struct device *dev, struct device_driver *drv)
if (dev->bus->dma_configure) {
ret = dev->bus->dma_configure(dev);
if (ret)
- goto probe_failed;
+ goto sysfs_failed;
}
ret = driver_sysfs_add(dev);
if (ret) {
pr_err("%s: driver_sysfs_add(%s) failed\n",
__func__, dev_name(dev));
- goto probe_failed;
+ goto sysfs_failed;
}
if (dev->pm_domain && dev->pm_domain->activate) {
@@ -657,6 +657,8 @@ static int really_probe(struct device *dev, struct device_driver *drv)
else if (drv->remove)
drv->remove(dev);
probe_failed:
+ driver_sysfs_remove(dev);
+sysfs_failed:
if (dev->bus)
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
BUS_NOTIFY_DRIVER_NOT_BOUND, dev);
@@ -666,7 +668,6 @@ static int really_probe(struct device *dev, struct device_driver *drv)
arch_teardown_dma_ops(dev);
kfree(dev->dma_range_map);
dev->dma_range_map = NULL;
- driver_sysfs_remove(dev);
dev->driver = NULL;
dev_set_drvdata(dev, NULL);
if (dev->pm_domain && dev->pm_domain->dismiss)
--
2.25.1
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