Hi Geert,
Many thanks for the series upgrade.
A few static-analysis findings below (could be false positives).
On Wed, Nov 27, 2019 at 09:42:51AM +0100, Geert Uytterhoeven wrote:
[..]
> +static bool isrange(const char *s)
> +{
> + size_t n = strlen(s);
Cppcheck 1.40-18521-ge6d692d96058:
drivers/gpio/gpio-aggregator.c:69:11: style: Variable 'n' is assigned a value that is never used. [unreadVariable]
Smatch v0.5.0-6150-gc1ed13e4ee7b:
drivers/gpio/gpio-aggregator.c:69 isrange() warn: unused return: n = strlen()
[..]
> + aggr->lookups->dev_id = kasprintf(GFP_KERNEL, "%s.%d", DRV_NAME, id);
> + if (!aggr->lookups) {
> + res = -ENOMEM;
> + goto remove_idr;
> + }
s/aggr->lookups/aggr->lookups->dev_id/ ?
[..]
> +static int gpio_fwd_get_multiple(struct gpio_chip *chip, unsigned long *mask,
> + unsigned long *bits)
> +{
> + struct gpiochip_fwd *fwd = gpiochip_get_data(chip);
> + unsigned long *values, flags;
gcc 9.2.1:
warning: ‘flags’ may be used uninitialized in this function [-Wmaybe-uninitialized]
[..]
> +static void gpio_fwd_set_multiple(struct gpio_chip *chip, unsigned long *mask,
> + unsigned long *bits)
> +{
> + struct gpiochip_fwd *fwd = gpiochip_get_data(chip);
> + unsigned long *values, flags;
gcc 9.2.1, same as above:
warning: ‘flags’ may be used uninitialized in this function [-Wmaybe-uninitialized]
Should these be silenced like in 2bf593f101f3ca ("xilinx_uartps.c:
suppress "may be used uninitialised" warning") ?
I plan to do some runtime testing soon.
--
Best Regards,
Eugeniu
