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| author |   Colin Ian King <colin.king@canonical.com> | 2017-12-04 17:08:15 +0000 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2017-12-07 09:59:39 +0100 |
| commit | 33b6cb58cbb6c872ebf874d8017c27aaa2130928 (patch) | |
| tree | 4f8565eec65665f69f9a6ee3339a2476459da6af /drivers/pinctrl | |
| parent | pinctrl: gemini: Support drive strength setting (diff) | |
| download | linux-dev-33b6cb58cbb6c872ebf874d8017c27aaa2130928.tar.xz linux-dev-33b6cb58cbb6c872ebf874d8017c27aaa2130928.zip | |
pinctrl: intel: ensure error return ret is initialized
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>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.c | 2 |
1 files changed, 1 insertions, 1 deletions
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]; |