This is a note to let you know that I've just added the patch titled
powerpc/pseries: fix possible memory leak in ibmebus_bus_init()
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-pseries-fix-possible-memory-leak-in-ibmebus_.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fc821297ed7d38af28a509ff73be78d58fbffa2b
Author: ruanjinjie <ruanjinjie@xxxxxxxxxx>
Date: Thu Nov 10 09:19:29 2022 +0800
powerpc/pseries: fix possible memory leak in ibmebus_bus_init()
[ Upstream commit afda85b963c12947e298ad85d757e333aa40fd74 ]
If device_register() returns error in ibmebus_bus_init(), name of kobject
which is allocated in dev_set_name() called in device_add() is leaked.
As comment of device_add() says, it should call put_device() to drop
the reference count that was set in device_initialize() when it fails,
so the name can be freed in kobject_cleanup().
Signed-off-by: ruanjinjie <ruanjinjie@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://msgid.link/20221110011929.3709774-1-ruanjinjie@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/powerpc/platforms/pseries/ibmebus.c b/arch/powerpc/platforms/pseries/ibmebus.c
index a870cada7acd2..ed5fc70b7353a 100644
--- a/arch/powerpc/platforms/pseries/ibmebus.c
+++ b/arch/powerpc/platforms/pseries/ibmebus.c
@@ -455,6 +455,7 @@ static int __init ibmebus_bus_init(void)
if (err) {
printk(KERN_WARNING "%s: device_register returned %i\n",
__func__, err);
+ put_device(&ibmebus_bus_device);
bus_unregister(&ibmebus_bus_type);
return err;
