On Tue, Apr 11, 2017 at 11:50:45AM +0200, Neil Armstrong wrote: > On 04/11/2017 07:53 AM, Heiner Kallweit wrote: > > The irq number is used in the probe function only, therefore just use > > a local variable. > > > > Signed-off-by: Heiner Kallweit <[email protected]> > > --- > > drivers/media/rc/meson-ir.c | 11 +++++------ > > 1 file changed, 5 insertions(+), 6 deletions(-) > > > > diff --git a/drivers/media/rc/meson-ir.c b/drivers/media/rc/meson-ir.c > > index 5576dbd6..a4128d7c 100644 > > --- a/drivers/media/rc/meson-ir.c > > +++ b/drivers/media/rc/meson-ir.c > > @@ -68,7 +68,6 @@ > > struct meson_ir { > > void __iomem *reg; > > struct rc_dev *rc; > > - int irq; > > spinlock_t lock; > > }; > > > > @@ -112,7 +111,7 @@ static int meson_ir_probe(struct platform_device *pdev) > > struct resource *res; > > const char *map_name; > > struct meson_ir *ir; > > - int ret; > > + int irq, ret; > > > > ir = devm_kzalloc(dev, sizeof(struct meson_ir), GFP_KERNEL); > > if (!ir) > > @@ -125,10 +124,10 @@ static int meson_ir_probe(struct platform_device > > *pdev) > > return PTR_ERR(ir->reg); > > } > > > > - ir->irq = platform_get_irq(pdev, 0); > > - if (ir->irq < 0) { > > + irq = platform_get_irq(pdev, 0); > > + if (irq < 0) { > > dev_err(dev, "no irq resource\n"); > > - return ir->irq; > > + return irq; > > } > > > > ir->rc = rc_allocate_device(RC_DRIVER_IR_RAW); > > @@ -158,7 +157,7 @@ static int meson_ir_probe(struct platform_device *pdev) > > goto out_free; > > } > > > > - ret = devm_request_irq(dev, ir->irq, meson_ir_irq, 0, "ir-meson", ir); > > + ret = devm_request_irq(dev, irq, meson_ir_irq, 0, "ir-meson", ir); > > if (ret) { > > dev_err(dev, "failed to request irq\n"); > > goto out_unreg; > > > > Hi Heiner, > > I'm not really convinced this is useful, if somehow for future enhancements > we need the IRQ > number, this will need to be reverted...
It's bad form having unused members in a struct, and if it really is needed in some future enhancement, it is easily reintroduced in that future enhancement patch. Sean
