diff options
| -rw-r--r-- | extmod/machine_i2c.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/extmod/machine_i2c.c b/extmod/machine_i2c.c index eacac15e63..dc16d78c54 100644 --- a/extmod/machine_i2c.c +++ b/extmod/machine_i2c.c @@ -117,6 +117,7 @@ STATIC int mp_hal_i2c_write_byte(machine_i2c_obj_t *self, uint8_t val) { } mp_hal_i2c_delay(self); if (!mp_hal_i2c_scl_release(self)) { + mp_hal_i2c_sda_release(self); return 0; // failure } mp_hal_i2c_scl_low(self); @@ -157,6 +158,7 @@ STATIC int mp_hal_i2c_read_byte(machine_i2c_obj_t *self, uint8_t *val, int nack) } mp_hal_i2c_delay(self); if (!mp_hal_i2c_scl_release(self)) { + mp_hal_i2c_sda_release(self); return 0; // failure } mp_hal_i2c_scl_low(self); |