[PATCH] i3c: master: Initialize ret in i3c_i2c_notifier_call()
From: Jorge Marques
Date: Sun Jun 22 2025 - 06:12:07 EST
Set ret to -EINVAL if i3c_i2c_notifier_call() receives an invalid
action, resolving uninitialized warning.
Signed-off-by: Jorge Marques <jorge.marques@xxxxxxxxxx>
---
If a invalid action was passed to i3c_i2c_notifier_call(), uninitialized
would be returned. Add a default option in the switch case to set it as
-EINVAL; I didn't set at the variable definition for readability
purpose. The warning was caught by smatch.
---
drivers/i3c/master.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index fd81871609d95bc082bd401681e7e132ea74f8a7..68b8ea9174b984a6c89b389c4b3a9669239def70 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -2467,6 +2467,8 @@ static int i3c_i2c_notifier_call(struct notifier_block *nb, unsigned long action
case BUS_NOTIFY_DEL_DEVICE:
ret = i3c_master_i2c_detach(adap, client);
break;
+ default:
+ ret = -EINVAL;
}
i3c_bus_maintenance_unlock(&master->bus);
---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250622-i3c-master-ret-uninitialized-16265d8a8719
Best regards,
--
Jorge Marques <jorge.marques@xxxxxxxxxx>