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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-21 05:38:18 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-08-21 05:38:18 +0000 |
| commit | 5a918526207805c8c5673e15a92bdf824ce53461 (patch) | |
| tree | 9981a771882546899a1fc0c3b83114fb818810ca /drivers/base/core.c | |
| parent | Releasing progress-linux version 6.10.4-1~progress7.99u1. (diff) | |
| download | linux-5a918526207805c8c5673e15a92bdf824ce53461.tar.xz linux-5a918526207805c8c5673e15a92bdf824ce53461.zip | |
Merging upstream version 6.10.6.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/base/core.c')
| -rw-r--r-- | drivers/base/core.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c index 2b4c0624b7..b539926219 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -25,6 +25,7 @@ #include <linux/mutex.h> #include <linux/pm_runtime.h> #include <linux/netdevice.h> +#include <linux/rcupdate.h> #include <linux/sched/signal.h> #include <linux/sched/mm.h> #include <linux/string_helpers.h> @@ -2640,6 +2641,7 @@ static const char *dev_uevent_name(const struct kobject *kobj) static int dev_uevent(const struct kobject *kobj, struct kobj_uevent_env *env) { const struct device *dev = kobj_to_dev(kobj); + struct device_driver *driver; int retval = 0; /* add device node properties if present */ @@ -2668,8 +2670,12 @@ static int dev_uevent(const struct kobject *kobj, struct kobj_uevent_env *env) if (dev->type && dev->type->name) add_uevent_var(env, "DEVTYPE=%s", dev->type->name); - if (dev->driver) - add_uevent_var(env, "DRIVER=%s", dev->driver->name); + /* Synchronize with module_remove_driver() */ + rcu_read_lock(); + driver = READ_ONCE(dev->driver); + if (driver) + add_uevent_var(env, "DRIVER=%s", driver->name); + rcu_read_unlock(); /* Add common DT information about the device */ of_device_uevent(dev, env); @@ -2739,11 +2745,8 @@ static ssize_t uevent_show(struct device *dev, struct device_attribute *attr, if (!env) return -ENOMEM; - /* Synchronize with really_probe() */ - device_lock(dev); /* let the kset specific function add its keys */ retval = kset->uevent_ops->uevent(&dev->kobj, env); - device_unlock(dev); if (retval) goto out; |