pmdomain: core: Add missing put_device()

BugLink: https://bugs.launchpad.net/bugs/2096827

[ Upstream commit b8f7bbd ]

When removing a genpd we don't clean up the genpd->dev correctly. Let's add
the missing put_device() in genpd_free_data() to fix this.

Fixes: 401ea15 ("PM / Domain: Add struct device to genpd")
Cc: [email protected]
Signed-off-by: Ulf Hansson <[email protected]>
Message-ID: <[email protected]>
Stable-dep-of: 3e3b71d ("pmdomain: core: Fix error path in pm_genpd_init() when ida alloc fails")
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Koichiro Den <[email protected]>

Author: storulf

drivers/pmdomain/core.c

@@ -2140,6 +2140,7 @@ static int genpd_alloc_data(struct generic_pm_domain *genpd)
 
 static void genpd_free_data(struct generic_pm_domain *genpd)
 {
+	put_device(&genpd->dev);
 	if (genpd_is_cpu_domain(genpd))
 		free_cpumask_var(genpd->cpus);
 	if (genpd->free_states)