power: supply: axp288_fuel_gauge: Fix fuel_gauge_reg_readb return on error


[ Upstream commit 6f074bc878dc9b00c0df0bf3a8cb1d9e294cd881 ]

If reading the register fails, return the actual error code, instead
of the uninitialized val variable;

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 file changed