diff options
| author | Lokesh Vutla <lokeshvutla@ti.com> | 2016-01-28 19:08:51 +0530 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-02-10 11:00:49 +0100 |
| commit | 6ec9249a83b00a754af435ed57ad02ffed105d93 (patch) | |
| tree | d82cb88cd586ea1dc5e2a8a09c3237295edcbdc9 /drivers/gpio | |
| parent | 310a7e60435151ccab6dc4bc64b4b3a93b89c0d1 (diff) | |
| download | linux-6ec9249a83b00a754af435ed57ad02ffed105d93.tar.bz2 | |
gpio: davinci: Fix the number of controllers allocated
Driver only needs to allocate for [ngpio / 32] controllers,
as each controller handles 32 gpios. But the current driver
allocates for ngpio of which the extra allocated are unused.
Fix it be registering only the required number of controllers.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-davinci.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index c889f3166205..cd007a67b302 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -195,7 +195,7 @@ static int davinci_gpio_of_xlate(struct gpio_chip *gc, static int davinci_gpio_probe(struct platform_device *pdev) { int i, base; - unsigned ngpio; + unsigned ngpio, nbank; struct davinci_gpio_controller *chips; struct davinci_gpio_platform_data *pdata; struct davinci_gpio_regs __iomem *regs; @@ -224,8 +224,9 @@ static int davinci_gpio_probe(struct platform_device *pdev) if (WARN_ON(ARCH_NR_GPIOS < ngpio)) ngpio = ARCH_NR_GPIOS; + nbank = DIV_ROUND_UP(ngpio, 32); chips = devm_kzalloc(dev, - ngpio * sizeof(struct davinci_gpio_controller), + nbank * sizeof(struct davinci_gpio_controller), GFP_KERNEL); if (!chips) return -ENOMEM; |