If the driver goes into any maintenance mode, disable sysfs access until
it is done.
If the driver goes into reset maintenance mode, disable all messages
until it is done.
Signed-off-by: Corey Minyard <co...@minyard.net>
---
drivers/char/ipmi/ipmi_msghandler.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/char/ipmi/ipmi_msghandler.c
b/drivers/char/ipmi/ipmi_msghandler.c
index f124c0b33db8..72f5f4a0c056 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -2338,6 +2338,11 @@ static int i_ipmi_request(struct ipmi_user *user,
if (!run_to_completion)
mutex_lock(&intf->users_mutex);
+ if (intf->maintenance_mode_state == IPMI_MAINTENANCE_MODE_STATE_RESET) {
+ /* No messages while the BMC is in reset. */
+ rv = -EBUSY;
+ goto out_err;
+ }
if (intf->in_shutdown) {
rv = -ENODEV;
goto out_err;
@@ -2639,6 +2644,12 @@ static int __bmc_get_device_id(struct ipmi_smi *intf,
struct bmc_device *bmc,
(bmc->dyn_id_set && time_is_after_jiffies(bmc->dyn_id_expiry)))
goto out_noprocessing;
+ /* Don't allow sysfs access when in maintenance mode. */
+ if (intf->maintenance_mode_state) {
+ rv = -EBUSY;
+ goto out_noprocessing;
+ }
+
prev_guid_set = bmc->dyn_guid_set;
__get_guid(intf);
--
2.43.0
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