@@ -1241,7 +1241,8 @@ static int gate_ctrl(struct dvb_frontend *fe, int enable)
if (write_reg(state, state->nr ? RSTV0910_P2_I2CRPT :
RSTV0910_P1_I2CRPT, i2crpt) < 0) {
/* don't hold the I2C bus lock on failure */
- mutex_unlock(&state->base->i2c_lock);
+ if (!WARN_ON(!mutex_is_locked(&state->base->i2c_lock)))
+ mutex_unlock(&state->base->i2c_lock);
dev_err(&state->base->i2c->dev,
"%s() write_reg failure (enable=%d)\n",
__func__, enable);
@@ -1251,7 +1252,8 @@ static int gate_ctrl(struct dvb_frontend *fe, int enable)
state->i2crpt = i2crpt;
if (!enable)
- mutex_unlock(&state->base->i2c_lock);
+ if (!WARN_ON(!mutex_is_locked(&state->base->i2c_lock)))
+ mutex_unlock(&state->base->i2c_lock);
return 0;
}