From: Tarun Sahu <tarunsahu@google.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Geoff Levand <geoff@infradead.org>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Nicholas Piggin <npiggin@gmail.com>,
Michael Ellerman <mpe@ellerman.id.au>,
dmatlack@google.com, Borislav Petkov <bp@alien8.de>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>,
djeffery@redhat.com, Tony Luck <tony.luck@intel.com>,
skhawaja@google.com, Russell King <linux@armlinux.org.uk>,
stuart.w.hayes@gmail.com
Cc: linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, driver-core@lists.linux.dev,
linux-edac@vger.kernel.org, Tarun Sahu <tarunsahu@google.com>
Subject: [PATCH 2/4] firmware/edd: use kobject_put() on edd_device_register() failure
Date: Mon, 10 Aug 2026 16:28:12 +0000 [thread overview]
Message-ID: <20260810162814.1398016-3-tarunsahu@google.com> (raw)
In-Reply-To: <20260810162814.1398016-1-tarunsahu@google.com>
When edd_device_register() fails after initializing the kobject with
kobject_init_and_add(), calling kfree(edev) directly bypasses the
kobject release callback (edd_release) and leaks the allocated kobject
resources.
Fix this by replacing direct kfree(edev) with kobject_put(&edev->kobj) on
registration failure.
Signed-off-by: Tarun Sahu <tarunsahu@google.com>
---
drivers/firmware/edd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c
index f980c5b56858..763e7b16d517 100644
--- a/drivers/firmware/edd.c
+++ b/drivers/firmware/edd.c
@@ -748,7 +748,7 @@ edd_init(void)
rc = edd_device_register(edev, i);
if (rc) {
- kfree(edev);
+ kobject_put(&edev->kobj);
goto out;
}
edd_devices[i] = edev;
--
2.55.0.679.g6767b8d81c-goog
next prev parent reply other threads:[~2026-08-10 16:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-10 16:28 [PATCH 0/4] Convert manual kfree(dev) to put_device() Tarun Sahu
2026-08-10 16:28 ` [PATCH 1/4] ARM: locomo: use put_device() on device_register() failure Tarun Sahu
2026-08-10 16:28 ` Tarun Sahu [this message]
2026-08-10 16:28 ` [PATCH 3/4] EDAC/versalnet: " Tarun Sahu
2026-08-11 6:44 ` Pandey, Radhey Shyam
2026-08-11 10:39 ` tarunsahu
2026-08-10 16:28 ` [PATCH 4/4] powerpc/ps3: use put_device() on device_register() failure in ps3_system_bus_device_register Tarun Sahu
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