On Thu, Sep 24, 2020 at 08:55:34AM +0200, Uwe Kleine-König wrote: > On Tue, Sep 15, 2020 at 04:23:37PM +0800, Rahul Tanwar wrote: ... > > + ret = lgm_clk_enable(dev, pc); > > + if (ret) { > > + dev_err(dev, "failed to enable clock\n"); > > You used dev_err_probe four times for six error paths. I wonder why you > didn't use it here (and below for a failing pwmchip_add()). dev_err_probe() makes sense when we might experience deferred probe. In neither of mentioned function this can be the case. > > + return ret; > > + } ... > > + ret = lgm_reset_control_deassert(dev, pc); > > + if (ret) > > + return dev_err_probe(dev, ret, "cannot deassert reset control\n"); > > After lgm_reset_control_deassert is called pc->rst is unused. So there > is no need to have this member in struct lgm_pwm_chip. The same applies > to ->clk. (You have to pass rst (or clk) to devm_add_action_or_reset for > that to work. Looks like a nice idea anyhow.) True. And above dev_err_probe() is not needed. -- With Best Regards, Andy Shevchenko