dead code in arch/arm/common/scoop.c
devendra.aaru
devendra.aaru at gmail.com
Wed Sep 26 14:17:46 EDT 2012
Hi all,
First of all sorry to disturb you all with my silly questions,
While looking at the scoop_probe in arch/arm/common/scoop.c, i found a
code path which will never run, please correct me if i am wrong,
code path: from arch/arm/common/scoop.c
@line = 179 scoop_probe
.........
@line = 212
iowrite16(inf->io_out & 0xffff, devptr->base + SCOOP_GPWR);
devptr->suspend_clr = inf->suspend_clr;
devptr->suspend_set = inf->suspend_set;
devptr->gpio.base = -1;
if (inf->gpio_base != 0) {
devptr->gpio.label = dev_name(&pdev->dev);
devptr->gpio.base = inf->gpio_base;
devptr->gpio.ngpio = 12; /* PA11 = 0, PA12 = 1, etc.
up to PA22 = 11 */
devptr->gpio.set = scoop_gpio_set;
devptr->gpio.get = scoop_gpio_get;
devptr->gpio.direction_input = scoop_gpio_direction_input;
devptr->gpio.direction_output = scoop_gpio_direction_output;
ret = gpiochip_add(&devptr->gpio);
if (ret)
goto err_gpio;
}
return 0;
/////------------- This execution path will never trigger to run --------/////
@line 235:
if (devptr->gpio.base != -1)
temp = gpiochip_remove(&devptr->gpio);
////------------------------------------------------------------------------------/////
err_gpio:
platform_set_drvdata(pdev, NULL);
err_ioremap:
iounmap(devptr->base);
kfree(devptr);
i dont think we should move err_gpio to just below return 0.
thanks,
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