[PATCH] platform/x86/amd/pmf: Fix power supply leak in amd_pmf_get_battery_prop()

[Wentao Liang <vulab@iscas.ac.cn>]

power_supply_get_by_name() takes a reference that is only dropped on
the error path of power_supply_get_property(). Drop it as soon as the
property has been read and stop searching, so that a successful lookup
does not leak the reference.

Fixes: f4627dfd0e19 ("platform/x86/amd/pmf: Add support to get inputs from other subsystems")
Cc: stable@vger.kernel.org
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
---
 drivers/platform/x86/amd/pmf/spc.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/amd/pmf/spc.c b/drivers/platform/x86/amd/pmf/spc.c
index f48678a23cc7..cd957d7a4e48 100644
--- a/drivers/platform/x86/amd/pmf/spc.c
+++ b/drivers/platform/x86/amd/pmf/spc.c
@@ -249,10 +249,11 @@ static int amd_pmf_get_battery_prop(enum power_supply_property prop)
 			continue;
 
 		ret = power_supply_get_property(psy, prop, &value);
-		if (ret) {
-			power_supply_put(psy);
+		power_supply_put(psy);
+		if (ret)
 			return ret;
-		}
+
+		break;
 	}
 
 	return value.intval;
-- 
2.34.1