From 39196cfe10dd2b46ee28b44abbc0db4f4cb7822f 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 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 --- 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 823d666f09e0..641dcad1133f 100644 --- a/drivers/power/supply/cpcap-charger.c +++ b/drivers/power/supply/cpcap-charger.c @@ -300,8 +300,9 @@ 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; }