diff options
| author | Thadeu Lima de Souza Cascardo <cascardo@canonical.com> | 2021-12-17 12:44:10 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-29 12:23:36 +0100 |
| commit | 8467c8cb94a406cc0c54d9306b61d0db86c94048 (patch) | |
| tree | 181cfe88c67bae46e406f21476d500c4245bc958 /drivers/char/ipmi/ipmi_msghandler.c | |
| parent | 8efd6a3391f7b0b19fb0c38e50add06ca30c94af (diff) | |
ipmi: fix initialization when workqueue allocation fails
commit 75d70d76cb7b927cace2cb34265d68ebb3306b13 upstream.
If the workqueue allocation fails, the driver is marked as not initialized,
and timer and panic_notifier will be left registered.
Instead of removing those when workqueue allocation fails, do the workqueue
initialization before doing it, and cleanup srcu_struct if it fails.
Fixes: 1d49eb91e86e ("ipmi: Move remove_work to dedicated workqueue")
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Cc: Corey Minyard <cminyard@mvista.com>
Cc: Ioanna Alifieraki <ioanna-maria.alifieraki@canonical.com>
Cc: stable@vger.kernel.org
Message-Id: <20211217154410.1228673-2-cascardo@canonical.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char/ipmi/ipmi_msghandler.c')
| -rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 8123775c8c24..ad2e6d55d4a5 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -5160,20 +5160,23 @@ static int ipmi_init_msghandler(void) if (rv) goto out; - timer_setup(&ipmi_timer, ipmi_timeout, 0); - mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES); - - atomic_notifier_chain_register(&panic_notifier_list, &panic_block); - remove_work_wq = create_singlethread_workqueue("ipmi-msghandler-remove-wq"); if (!remove_work_wq) { pr_err("unable to create ipmi-msghandler-remove-wq workqueue"); rv = -ENOMEM; - goto out; + goto out_wq; } + timer_setup(&ipmi_timer, ipmi_timeout, 0); + mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES); + + atomic_notifier_chain_register(&panic_notifier_list, &panic_block); + initialized = true; +out_wq: + if (rv) + cleanup_srcu_struct(&ipmi_interfaces_srcu); out: mutex_unlock(&ipmi_interfaces_mutex); return rv; |