soundwire: bus: set initial value to port_status

port_status[port_num] are assigned for each port_num in some if
conditions. So some of the port_status may not be initialized.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190829181135.16049-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 728db3e..1dc19a3 100644 (file)
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -811,7 +811,7 @@ static int sdw_handle_port_interrupt(struct sdw_slave *slave,
 static int sdw_handle_slave_alerts(struct sdw_slave *slave)
 {
        struct sdw_slave_intr_status slave_intr;
-       u8 clear = 0, bit, port_status[15];
+       u8 clear = 0, bit, port_status[15] = {0};
        int port_num, stat, ret, count = 0;
        unsigned long port;
        bool slave_notify = false;