Messages in this thread |  | | Subject | Re: [PATCH 4/5] [media] winbond-cir: One variable and its check less in wbcir_shutdown() after error detection | From | SF Markus Elfring <> | Date | Sat, 15 Oct 2016 18:42:52 +0200 |
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>> + /* Set CEIR_EN */ >> + wbcir_set_bits(data->wbase + WBCIR_REG_WCEIR_CTL, 0x01, 0x01); >> +set_irqmask: >> /* >> * ACPI will set the HW disable bit for SP3 which means that the >> * output signals are left in an undefined state which may cause >> @@ -876,6 +858,14 @@ wbcir_shutdown(struct pnp_dev *device) >> */ >> wbcir_set_irqmask(data, WBCIR_IRQ_NONE); >> disable_irq(data->irq); >> + return; >> +clear_bits: >> + /* Clear BUFF_EN, Clear END_EN, Clear MATCH_EN */ >> + wbcir_set_bits(data->wbase + WBCIR_REG_WCEIR_EV_EN, 0x00, 0x07); >> + >> + /* Clear CEIR_EN */ >> + wbcir_set_bits(data->wbase + WBCIR_REG_WCEIR_CTL, 0x00, 0x01); >> + goto set_irqmask; > > I'm not convinced that adding a goto which goes backwards is making this > code any more readible, just so that a local variable can be dropped.
Thanks for your feedback.
Is such a "backward jump" usual and finally required when you would like to move a bit of common error handling code to the end without using extra local variables and a few statements should still be performed after it?
Regards, Markus
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