Message ID | 20171204170815.14779-1-colin.king@canonical.com |
---|---|
State | New |
Headers | show |
Series | [next] pinctrl: intel: ensure error return ret is initialized | expand |
On Mon, Dec 04, 2017 at 05:08:15PM +0000, Colin King wrote: > From: Colin Ian King <colin.king@canonical.com> > > In the (unlikely) event that community->ngpps is zero, or if every > gpp->gpio_base is less than zero, then an ininitialized value in > ret is returned by function intel_gpio_add_pin_ranges. Fix this by > ensuring ret is initialized to zero. It's a moot point, but I think > it is worthwhile ensuring this corner case is fixed. I agree. > Detected by CoverityScan, CID#1462415 ("Uninitialized scalar variable") > > Fixes: a60eac3239f0 ("pinctrl: intel: Allow custom GPIO base for pad groups") > Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Dec 4, 2017 at 6:08 PM, Colin King <colin.king@canonical.com> wrote: > From: Colin Ian King <colin.king@canonical.com> > > In the (unlikely) event that community->ngpps is zero, or if every > gpp->gpio_base is less than zero, then an ininitialized value in > ret is returned by function intel_gpio_add_pin_ranges. Fix this by > ensuring ret is initialized to zero. It's a moot point, but I think > it is worthwhile ensuring this corner case is fixed. > > Detected by CoverityScan, CID#1462415 ("Uninitialized scalar variable") > > Fixes: a60eac3239f0 ("pinctrl: intel: Allow custom GPIO base for pad groups") > Signed-off-by: Colin Ian King <colin.king@canonical.com> Patch applied with Mika's ACK. Thanks for running these Coverity scans. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-gpio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 359800fcb951..96e73e30204e 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -1083,7 +1083,7 @@ static struct irq_chip intel_gpio_irqchip = { static int intel_gpio_add_pin_ranges(struct intel_pinctrl *pctrl, const struct intel_community *community) { - int ret, i; + int ret = 0, i; for (i = 0; i < community->ngpps; i++) { const struct intel_padgroup *gpp = &community->gpps[i];