From 3f93f17ae9468fc20e9a2cdb80c461284ca4118a Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 15 Jan 2021 13:15:24 +0000 Subject: [PATCH] power: supply: cpcap-charger: Fix power_supply_put on null battery pointer [ Upstream commit 39196cfe10dd2b46ee28b44abbc0db4f4cb7822f ] Currently if the pointer battery is null there is a null pointer dereference on the call to power_supply_put. Fix this by only performing the put if battery is not null. Addresses-Coverity: ("Dereference after null check") Fixes: 4bff91bb3231 ("power: supply: cpcap-charger: Fix missing power_supply_put()") Signed-off-by: Colin Ian King Acked-by: Tony Lindgren Signed-off-by: Sebastian Reichel Signed-off-by: Sasha Levin --- drivers/power/supply/cpcap-charger.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/power/supply/cpcap-charger.c b/drivers/power/supply/cpcap-charger.c index 2c5f2246c6ea..22fff01425d6 100644 --- a/drivers/power/supply/cpcap-charger.c +++ b/drivers/power/supply/cpcap-charger.c @@ -301,8 +301,9 @@ cpcap_charger_get_bat_const_charge_voltage(struct cpcap_charger_ddata *ddata) &prop); if (!error) voltage = prop.intval; + + power_supply_put(battery); } - power_supply_put(battery); return voltage; } -- 2.34.1