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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-23 19:20:15 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-23 19:20:15 +0200
commit1d597682d3e669ec7021aa33d088ed3d136a5149 (patch)
tree7967266cbec8d1aba11e6e9b2370f3a7faf00d33 /drivers
parentMerge tag 'char-misc-5.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
parentdriver core: Prevent warning when removing a device link from unregistered co... (diff)
downloadlinux-1d597682d3e669ec7021aa33d088ed3d136a5149.tar.xz
linux-1d597682d3e669ec7021aa33d088ed3d136a5149.zip
Merge tag 'driver-core-5.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH: "Here are two small driver core fixes to resolve some reported problems for 5.14-rc3. They include: - aux bus memory leak fix - unneeded warning message removed when removing a device link. Both have been in linux-next with no reported problems" * tag 'driver-core-5.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: driver core: Prevent warning when removing a device link from unregistered consumer driver core: auxiliary bus: Fix memory leak when driver_register() fail
Diffstat (limited to 'drivers')
-rw-r--r--drivers/base/auxiliary.c8
-rw-r--r--drivers/base/core.c6
2 files changed, 11 insertions, 3 deletions
diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c
index adc199dfba3c..6a30264ab2ba 100644
--- a/drivers/base/auxiliary.c
+++ b/drivers/base/auxiliary.c
@@ -231,6 +231,8 @@ EXPORT_SYMBOL_GPL(auxiliary_find_device);
int __auxiliary_driver_register(struct auxiliary_driver *auxdrv,
struct module *owner, const char *modname)
{
+ int ret;
+
if (WARN_ON(!auxdrv->probe) || WARN_ON(!auxdrv->id_table))
return -EINVAL;
@@ -246,7 +248,11 @@ int __auxiliary_driver_register(struct auxiliary_driver *auxdrv,
auxdrv->driver.bus = &auxiliary_bus_type;
auxdrv->driver.mod_name = modname;
- return driver_register(&auxdrv->driver);
+ ret = driver_register(&auxdrv->driver);
+ if (ret)
+ kfree(auxdrv->driver.name);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(__auxiliary_driver_register);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index cadcade65825..f6360490a4a3 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -574,8 +574,10 @@ static void devlink_remove_symlinks(struct device *dev,
return;
}
- snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup));
- sysfs_remove_link(&con->kobj, buf);
+ if (device_is_registered(con)) {
+ snprintf(buf, len, "supplier:%s:%s", dev_bus_name(sup), dev_name(sup));
+ sysfs_remove_link(&con->kobj, buf);
+ }
snprintf(buf, len, "consumer:%s:%s", dev_bus_name(con), dev_name(con));
sysfs_remove_link(&sup->kobj, buf);
kfree(buf);