pmdomain: Merge branch fixes into next

Merge the pmdomain fixes for v6.15-rc[n] into the next branch, to allow
them to get tested together with the new changes that are targeted for
v6.16.

Signed-off-by: Ulf Hansson <[email protected]>

Author: storulf

drivers/pmdomain/core.c

@@ -3176,7 +3176,7 @@ struct device *genpd_dev_pm_attach_by_id(struct device *dev,
 	/* Verify that the index is within a valid range. */
 	num_domains = of_count_phandle_with_args(dev->of_node, "power-domains",
 						 "#power-domain-cells");
-	if (index >= num_domains)
+	if (num_domains < 0 || index >= num_domains)
 		return NULL;
 
 	/* Allocate and register device on the genpd bus. */