From: Thadeu Lima de Souza Cascardo cascardo@canonical.com
stable inclusion from linux-4.19.223 commit db0d90490674c297a2e15a1ca3e40cd6975c30dc
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commit 2b5160b12091285c5aca45980f100a9294af7b04 upstream.
In case, init_srcu_struct fails (because of memory allocation failure), we might proceed with the driver initialization despite srcu_struct not being entirely initialized.
Fixes: 913a89f009d9 ("ipmi: Don't initialize anything in the core until something uses it") Signed-off-by: Thadeu Lima de Souza Cascardo cascardo@canonical.com Cc: Corey Minyard cminyard@mvista.com Cc: stable@vger.kernel.org Message-Id: 20211217154410.1228673-1-cascardo@canonical.com Signed-off-by: Corey Minyard cminyard@mvista.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yongqiang Liu liuyongqiang13@huawei.com Signed-off-by: Laibin Qiu qiulaibin@huawei.com --- drivers/char/ipmi/ipmi_msghandler.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index 19c33a86c1b8..9b66afeb1237 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -5083,7 +5083,9 @@ static int ipmi_init_msghandler(void) if (initialized) goto out;
- init_srcu_struct(&ipmi_interfaces_srcu); + rv = init_srcu_struct(&ipmi_interfaces_srcu); + if (rv) + goto out;
timer_setup(&ipmi_timer, ipmi_timeout, 0); mod_timer(&ipmi_timer, jiffies + IPMI_TIMEOUT_JIFFIES);