i2c: mvtwsi.c: Avoid NULL dereference
For '#ifndef CONFIG_DM_I2C' twsi_i2c_init() passes NULL as
4th parameter to __twsi_i2c_init().
Identified with cppcheck.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/drivers/i2c/mvtwsi.c b/drivers/i2c/mvtwsi.c
index dfbc4e0..30bee0d 100644
--- a/drivers/i2c/mvtwsi.c
+++ b/drivers/i2c/mvtwsi.c
@@ -490,7 +490,8 @@
/* Reset controller */
twsi_reset(twsi);
/* Set speed */
- *actual_speed = __twsi_i2c_set_bus_speed(twsi, speed);
+ if (actual_speed)
+ *actual_speed = __twsi_i2c_set_bus_speed(twsi, speed);
/* Set slave address; even though we don't use it */
writel(slaveadd, &twsi->slave_address);
writel(0, &twsi->xtnd_slave_addr);