[RFC PATCH 2/2] PM: EM: Validate new_table in em_dev_update_perf_domain()

[Xuewen Yan]

Add an explicit check for the new_table parameter in
em_dev_update_perf_domain() to ensure it is not NULL or an
ERR_PTR before proceeding with the update.

Signed-off-by: Xuewen Yan <xuewen.yan@xxxxxxxxxx>
---
 kernel/power/energy_model.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c
index 277aaf1b19da..4d75e1b3c20e 100644
--- a/kernel/power/energy_model.c
+++ b/kernel/power/energy_model.c
@@ -331,7 +331,7 @@ int em_dev_update_perf_domain(struct device *dev,
 	struct em_perf_table *old_table;
 	struct em_perf_domain *pd;
 
-	if (!dev)
+	if (!dev || IS_ERR_OR_NULL(new_table))
 		return -EINVAL;
 
 	/* Serialize update/unregister or concurrent updates */
-- 
2.25.1