Hi Jamie, As you said, .shift = 32, is useless line. And Do you mean that Is needed error handling of clk_enable like below? clk_enable(timerclk); if (IS_ERR(timerclk)){ clk_put(timerclk) panic("failed to enable timers clock"); } There is no another clk_enable for timerclk. I will add clk_enable error handling code. Thanks and regards, S.B. Kim On Wednesday, March 09, 2011 11:10 PM, Jamie Iles <Jamie@xxxxxxxxxxxxx> wrote > -----Original Message----- > > +static struct clock_event_device time_event_device = { > > + .name = "s5p_event_timer", > > + .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, > > + .rating = 200, > > + .shift = 32, > > You are using clockevents_calc_mult_shift so you don't need to specify > .shift here. > > > + unsigned long event_id = timer_source.event_id; > > + unsigned long source_id = timer_source.source_id; > > + > > + timerclk = clk_get(NULL, "timers"); > > + if (IS_ERR(timerclk)) > > + panic("failed to get timers clock for timer"); > > + > > + clk_enable(timerclk); > > clk_enable() can fail, should you be checking the return here and the > other clk_enable() calls? > > Jamie > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html